lower limb development-ganger
TRANSCRIPT
09042011
1
Lower Limb Development
Normal and Abnormal
R Ganger MD PhD
Orthopaedic Hospital Vienna ndash Speising (wwwossat)
Department of Pediatric Orthopaedic Surgery (F Grill)
Lower Limb Development
Frontal plane alignment
bull Physiologic variations the range of normal knee angles
changes with age
bull Account for the greatest number of referrals
(including torsional problems) of children to orthopaedists
- Genu varum bow legs
- Genu valgum knock knees
Lower Limb Development
Frontal plane alignment
bull Genu varum bow legs
bull Genu valgum knock knees
09042011
2
Lower Limb Development
Frontal plane alignment
bull Genu varum bow legs
bull Genu valgum knock knees
Newborn 6 months 18 months
30 months 4-6 years
Lower Limb Development
Frontal plane deformities
bull Genu varum or Genu valgum outside normal range (+- 2 SD)
bull Normal or abnormal
- History family trauma infection
- Body height and body proportion
- Other present deformities
- Unilateral or bilateral
- Leg length difference
- Laboratory examination metabolic
Lower Limb Development
Frontal plane deformities
bull Genu varum or Genu valgum outside normal range (+- 2SD)
bull Warnings
- Asymmetrical defromity
- Progression
- Pain
- Leg length difference
09042011
3
Lower Limb Development
Frontal plane alignment
bull Standard imaging AP-long leg standing radiogram
patella pointing straight forward
incorrect correct
Lower Limb Development
Frontal plane alignment
bull The majority of children with bow legs befors age of 2 yrs and
knock knees presenting before 6 yrs will resolve spontaneously
Natural history
bull benign
bull selfcorrecting deformity
Correction devices (twister cables night splints shoe wedges)
are unnecessary
Anual clinical checks are recommended
Lower Limb Development
Frontal plane alignment
bull The minority of children with unilateral deformity progression
leg length discrepancy and pain need further investigation
Pathological genu varum valgum
bull M Blount
bull Rickets VitD - resistent rickets
bull Deformities after infection trauma
tumor
09042011
4
Lower Limb Development
Frontal plane alignment
Goal
bull Physiological deformities are best observed
bull Pathological deformities are treated surgically to achieve
straight legs at same length
Lower Limb Development
Torsional problems
Intoing
bull usually not abnormal
bull developmental variation
bull resolves spontaneously
If the deformity is severe TORSIONAL DEFORMITY
Lower Limb Development
Torsion problems
What conditions cause intoing
bull medial femoral torsion
bull medial tibial torsion
bull forefoot adduction
Each is contributing to the degree of intoeing
09042011
5
Lower Limb Development
Forefoot adduction
Adduction of the forefoot in respect to the hindfoot can cause intoing
Lower Limb Development
Femoral torsion
Definition angular difference between the axis
of the upper femur and that of the knee
Natural history
bull at birth the femoral torsion is 30deg
bull it decreases with growth and averages at 15deg for adults
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased femoral antetorsion
bull intoing gait pattern with kneeing in (patella pointing medially)
bull increased medial hip rotation decreased lateral hip rotation
Medial (internal) hip rotation Lateral (external) hip rotation
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
2
Lower Limb Development
Frontal plane alignment
bull Genu varum bow legs
bull Genu valgum knock knees
Newborn 6 months 18 months
30 months 4-6 years
Lower Limb Development
Frontal plane deformities
bull Genu varum or Genu valgum outside normal range (+- 2 SD)
bull Normal or abnormal
- History family trauma infection
- Body height and body proportion
- Other present deformities
- Unilateral or bilateral
- Leg length difference
- Laboratory examination metabolic
Lower Limb Development
Frontal plane deformities
bull Genu varum or Genu valgum outside normal range (+- 2SD)
bull Warnings
- Asymmetrical defromity
- Progression
- Pain
- Leg length difference
09042011
3
Lower Limb Development
Frontal plane alignment
bull Standard imaging AP-long leg standing radiogram
patella pointing straight forward
incorrect correct
Lower Limb Development
Frontal plane alignment
bull The majority of children with bow legs befors age of 2 yrs and
knock knees presenting before 6 yrs will resolve spontaneously
Natural history
bull benign
bull selfcorrecting deformity
Correction devices (twister cables night splints shoe wedges)
are unnecessary
Anual clinical checks are recommended
Lower Limb Development
Frontal plane alignment
bull The minority of children with unilateral deformity progression
leg length discrepancy and pain need further investigation
Pathological genu varum valgum
bull M Blount
bull Rickets VitD - resistent rickets
bull Deformities after infection trauma
tumor
09042011
4
Lower Limb Development
Frontal plane alignment
Goal
bull Physiological deformities are best observed
bull Pathological deformities are treated surgically to achieve
straight legs at same length
Lower Limb Development
Torsional problems
Intoing
bull usually not abnormal
bull developmental variation
bull resolves spontaneously
If the deformity is severe TORSIONAL DEFORMITY
Lower Limb Development
Torsion problems
What conditions cause intoing
bull medial femoral torsion
bull medial tibial torsion
bull forefoot adduction
Each is contributing to the degree of intoeing
09042011
5
Lower Limb Development
Forefoot adduction
Adduction of the forefoot in respect to the hindfoot can cause intoing
Lower Limb Development
Femoral torsion
Definition angular difference between the axis
of the upper femur and that of the knee
Natural history
bull at birth the femoral torsion is 30deg
bull it decreases with growth and averages at 15deg for adults
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased femoral antetorsion
bull intoing gait pattern with kneeing in (patella pointing medially)
bull increased medial hip rotation decreased lateral hip rotation
Medial (internal) hip rotation Lateral (external) hip rotation
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
3
Lower Limb Development
Frontal plane alignment
bull Standard imaging AP-long leg standing radiogram
patella pointing straight forward
incorrect correct
Lower Limb Development
Frontal plane alignment
bull The majority of children with bow legs befors age of 2 yrs and
knock knees presenting before 6 yrs will resolve spontaneously
Natural history
bull benign
bull selfcorrecting deformity
Correction devices (twister cables night splints shoe wedges)
are unnecessary
Anual clinical checks are recommended
Lower Limb Development
Frontal plane alignment
bull The minority of children with unilateral deformity progression
leg length discrepancy and pain need further investigation
Pathological genu varum valgum
bull M Blount
bull Rickets VitD - resistent rickets
bull Deformities after infection trauma
tumor
09042011
4
Lower Limb Development
Frontal plane alignment
Goal
bull Physiological deformities are best observed
bull Pathological deformities are treated surgically to achieve
straight legs at same length
Lower Limb Development
Torsional problems
Intoing
bull usually not abnormal
bull developmental variation
bull resolves spontaneously
If the deformity is severe TORSIONAL DEFORMITY
Lower Limb Development
Torsion problems
What conditions cause intoing
bull medial femoral torsion
bull medial tibial torsion
bull forefoot adduction
Each is contributing to the degree of intoeing
09042011
5
Lower Limb Development
Forefoot adduction
Adduction of the forefoot in respect to the hindfoot can cause intoing
Lower Limb Development
Femoral torsion
Definition angular difference between the axis
of the upper femur and that of the knee
Natural history
bull at birth the femoral torsion is 30deg
bull it decreases with growth and averages at 15deg for adults
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased femoral antetorsion
bull intoing gait pattern with kneeing in (patella pointing medially)
bull increased medial hip rotation decreased lateral hip rotation
Medial (internal) hip rotation Lateral (external) hip rotation
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
4
Lower Limb Development
Frontal plane alignment
Goal
bull Physiological deformities are best observed
bull Pathological deformities are treated surgically to achieve
straight legs at same length
Lower Limb Development
Torsional problems
Intoing
bull usually not abnormal
bull developmental variation
bull resolves spontaneously
If the deformity is severe TORSIONAL DEFORMITY
Lower Limb Development
Torsion problems
What conditions cause intoing
bull medial femoral torsion
bull medial tibial torsion
bull forefoot adduction
Each is contributing to the degree of intoeing
09042011
5
Lower Limb Development
Forefoot adduction
Adduction of the forefoot in respect to the hindfoot can cause intoing
Lower Limb Development
Femoral torsion
Definition angular difference between the axis
of the upper femur and that of the knee
Natural history
bull at birth the femoral torsion is 30deg
bull it decreases with growth and averages at 15deg for adults
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased femoral antetorsion
bull intoing gait pattern with kneeing in (patella pointing medially)
bull increased medial hip rotation decreased lateral hip rotation
Medial (internal) hip rotation Lateral (external) hip rotation
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
5
Lower Limb Development
Forefoot adduction
Adduction of the forefoot in respect to the hindfoot can cause intoing
Lower Limb Development
Femoral torsion
Definition angular difference between the axis
of the upper femur and that of the knee
Natural history
bull at birth the femoral torsion is 30deg
bull it decreases with growth and averages at 15deg for adults
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased femoral antetorsion
bull intoing gait pattern with kneeing in (patella pointing medially)
bull increased medial hip rotation decreased lateral hip rotation
Medial (internal) hip rotation Lateral (external) hip rotation
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
6
Lower Limb Development
Tibial torsion
Definition deformity in which the horizontal plane
of the tibia is rotated medially or laterally
Natural history
bull at birth the tibial torsion is 0deg
bull with growth it averages at 15deg - 20deg external rotation
From HEFTI
Kinderorthopaumldie
Springer-Verlag
Lower Limb Development
Increased medial tibial torsion
bull resolve spontaneously in 95 over time
bull often in combination with genua vara
Lower Limb Development
Torsional deformity
Age at presentation is important
bull early infancy usually due to metatarsus adductus
bull toddler age medial tibial torsion
bull early childhood medial femoral torsion
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
7
Lower Limb Development
Torsional deformity
Pitfalls of diagnosis avoid overlooking underlying diseases
bull intoeing hip dysplasia mild diplegia or hemiplegia
bull out-toeing SCFE
Lower Limb Development
Femoral and tibial torsion
Imaging
bull Sonography
bull Rotational CT-scan
helpful when operative
correction is planned
Lower Limb Development
Femoral and tibial torsional deformities
Treatment
bull the majority will resolve spontaneously over time
bull devices like twister cables night splints shoe wedges
and inserts are not effective
bull convince the family that observation is the best
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
8
Lower Limb Development
Tibial torsional deformities
Medial tibial torsion
bull mostly improves
bull if persistant supramalleolar derotation osteotomy
Lateral tibial torsion
bull increases with growth
bull more often requires operative treatment
Lower Limb Development
Femoral torsional deformities
Medial femoral torsion
bull normally improves
bull no risk of osteoarthritis
bull if persistant and severe rotational femoral osteotomy at the
proximal level in adolescence
Lateral femoral torsion (retrotorsion)
bull risk of osteoarthritis
bull requires operative treatment
Lower Limb Development
Femoral torsional deformities
Rotational femoral osteotomy
plate fixation
FIGURE 6amp>http12700183figures202006F50gif ltp class=FiguregtltbgtFIGURE 6amp
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
9
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
bull foot progression angle is normal but the knee
is rotated medially
bull patients complain of patellofemoral knee pain
bull double osteotomy may be required in severe cases
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
Lower Limb Development
Torsional Malalignment Syndrom
Combination of medial femoral torsion and lateral tibial torsion
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
10
Lower Limb Development
Leg Length Difference ndash LLD
Structural LLD
bull may occur at any site in the limb or pelvis
the height of the foot and pelvis should be included
in calculating the total discrepancy
Functional LLD
bull shorter
- adduction contracture of the hip
- flexion contracture of the knee
bull longer
- abduction contracture of the hip
- foot equinus
Lower Limb Development
Leg Length Difference ndash LLD
Idiopathic LLD lt 1cm
bull can be found up to 30
LLD gt 2 cm
bull after trauma
bull congenital (CFD FH TH)
bull metabolic (rickets Vit-D-resitent rickets)
bull after infection or radiation
bull neurological (polio cerebral palsyhellip)
bull osteodysplastic disorders syndromas
(M Ollier Klippel-Trenaunay)
Lower Limb Development
Leg Length Difference ndash LLD
LLD gt 2 cm
bull effect on gait depends on the magnitude
compensation by flexing the knee on the long side
standing in ankle equinus on the shortened side
bull functional scoliosis because of
pelvis inequality
bull sometimes back-pain
bull causal relationship between LLD and
osteoarthritis has not been shown
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
11
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull LLD is best assessed
by progressively elevating
the short side with plates
until the pelvis is at
the same level
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull measuring tape
not accurate enough
Lower Limb Development
Leg Length Difference ndash LLD
Clinical examination
bull note a difference
in femoral or tibial length
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
12
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull AP-view standing radiograph
of the pelvis
bull the short side should be
supported on a lift
to eliminate compensatory
mechanisms that could
affect measurement
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
13
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Orthoradiogram
- for calculation
of femoral and tibial length
- does not adress
foot height or
pelvic inequality
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
- film-focus distance
305cm
- metal ball
diameter 25mm
at the level
of the bone
for calibration
Lower Limb Development
Leg Length Difference ndash LLD
Imaging methods
bull Teleradiogram
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
14
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull LLD at the end of growth
bull Strategy of correction
- lift lengthening shortening epiphysiodesis
bull Timing of epiphysiodesis
Lower Limb Development
Prediction of LLD
Calculation discrepancy at maturity
bull Problems
- different methods based on the bone age
- not accurate enough during period of puberty
- different formulas are based on the same patients data
Lower Limb Development
Determination of the bone age
bull according to Greulich and Pyle
- details from AP-hand radiogram
- specific for boys and girls
- data from children
born between 1917 and 1942
bull according to Tanner and Whitehouse
- AP-hand radiogram
- 20 different details
- time consuming
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
15
Lower Limb Development
Determination of percentile group
bull bone age
bull body height
bull Anderson charts
Lower Limb Development
Prediction of LLD
Growth remaining charts ndash Green amp Anderson
bull determination
of bone age and
height percentile
bull identification
of remaining growth
on the diagram
bull specific for
boys and girls
Lower Limb Development
Prediction of LLD
Moseley straigth-line graph
bull graphic method based on
the Anderson data
bull 3-4 evaluations of actual
LLD are necessary
to predict final LLD
at maturity
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
16
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
bull biological age and
age-specific multipliers
are used
bull specific
for boys and girls
Lower Limb Development
Prediction of LLD
Multiplier method according to Paley
Height at maturity =
actual height x
multiplier
LLD at maturity
actual LLD x
multiplier
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
17
Lower Limb Development
LLD conservative treatment
Insole
bull 05 ndash 1 cm
Shoe lift
bull 1 ndash 5 cm
bull avoid instability
Orthopedic shoes
bull 5 ndash 10 cm
Orthoprothetic device
bull more than 10 cm
Lower Limb Development
Algorithm for management of LLD
From STAHELI Fundamentals of Pediatric Orthopedics
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
18
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Anatomical axis
Lower Limb Development
Normal lower limb alignment
Frontal plane
bull Mechanical axis
versus
bull Anatomical axis
Femur
difference of 6deg
Tibia
same
Lower Limb Development
Normal lower limb alignment
Sagittal plane
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
19
Lower Limb Development
Lower limb malalignment
Deformity analysis
Frontal plane
bull Varus valgus translation
Sagittal plane
bull Antecurvation recurvation translation
Axial plane
bull Rotation lengthening or shortening
Lower Limb Development
Malalignment test acc to Paley and Herzenberg
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral deformity
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Tibial deformity
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
20
Lower Limb Development
Malalignment test
bull Identify the source(s)
of the
mechanical axis
deviation
Femoral and tibial
deformity
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
21
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program Deformity 4deg
Correction 85deg
With Auto Alignment
MAD 7mm med
Individual Alignment
MAD 1mm med
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
22
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
Lower Limb Development
Tibial mechanical axis planning
Frontal plane
bull Digital planning
with
TraumaCad
program
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
23
Lower Limb Development
LLD procedures for lengthening and axial correction
Different devices
Lower Limb Development
LLD procedures for lengthening and axial correction
Different indications for different devices
bull Etiology of the disease (congenital metabolic posttraumatic
postinfectionhellip)
bull Type of deformity (unilevel multilevel leg length difference)
bull Bony maturation (open closed growth plates)
bull Training and skill of the surgeon
bull Availibility of the system (costshellip)
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixators
bull Orthofix ndash fixator (Orthofix company)
bull Dynafix ndash fixator (Biomet company)
bull Fixation with screws
(diameter of 5 or 6 mm)
Best indications
bull Diaphyseal and distal femoral deformities
bull Distal femoral lengthening procedures
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
24
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
Lower Limb Development
LLD procedures for lengthening and axial correction
Unilateral fixator
Posttraumatic LLD left femur ndash 36cm no axial deformity Dynafix 82000
102000 42001 42002 1 y after removal
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
Gavril A Ilizarov
Each frame is a special custom made construct
for a given deformity
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
25
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Traditional
Ilizarov fixator
AE 10y VitD-resistant rickets multiapical and multidirectional deformity
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
26
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
Charles J Taylor
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Circular external fixation system
bull Gradual correction by use of 6 telescopic struts
(HEXAPOD ndash system)
bull Combination with a webbased software ndash program
Angulation deformity Angulation-translation deformity
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Login-site
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
27
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Define deformity
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull Web-based
software
Prescription
site
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor Spatial Frame
bull multiapical planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
28
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
29
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
LJ Achondroplasia correction against varus and lengthening of 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm
Lower Limb Development
LLD procedures for lengthening and axial correction
Taylor
Spatial Frame
bull multiapical
planning
Bilateral bilevel correction lengthening 6 cm final result
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
30
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Power Supply
Transmitter
Receiver
Skin
Subcutaneous
TissueBone
Distraction-Nail
(Motor Gear)
Fitbonereg
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
Black prauml-OP
Green post-OP
Red post lengthening
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
MM born 1979
LLD femur ndash 3 cm
62007
retrograde
femoral nail
FITBONE
82007 112007
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
31
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
62007 72007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
SM born 1988
LLD tibia ndash 32 cm
62007
tibia nail
FITBONE
112007
Lower Limb Development
LLD procedures for lengthening and axial correction
Intramedullary lengthening nail ndash FITBONEreg
Indications
bull closed growth plates
bull adequate intramedullary diameter
(FITBONE minimum 12 mm)
bull lengthening procedures with moderate deformities
bull uniapical deformities
09042011
32
Thank you for your attention
09042011
32
Thank you for your attention