the ankle & lower leg lecture 10
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The Ankle & Lower Leg Lecture 10. Lower leg and ankle. ankle injuries most frequent in sports tibia is major weight bearing bone of the lower leg fibula assists minimally with weight bearing aprrox 2 % , serves as a site for muscle attachment and contributes to the stability of the ankle. - PowerPoint PPT PresentationTRANSCRIPT
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The Ankle & Lower LegLecture 10
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Lower leg and ankle ankle injuries most
frequent in sports tibia is major weight bearing
bone of the lower leg fibula assists minimally with
weight bearing aprrox 2 % , serves as a site for muscle attachment and contributes to the stability of the ankle
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Crural Bones
med / lat. malleolus and talus
Talocrural Joint (ankle joint)
is a uniaxial modified hinge joint - (talus, tibia and fibula)
plantar flexion and dorsiflexion occur here
talus wider ant vs post - stability
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Lateral Ankle Support
a) ATF, PTF , CF (static)
(AITF)
b) peroneals (dynamic) the lateral ligaments
of the ankle joint are relatively weaker than the medial ligaments
hence the larger number of lateral ankle sprains
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Medial Ankle
a) Deltoid ligament (static)
b) Tom, Dick and Harry (dynamic)
Dynamic TA TP
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Distal Tib-Fib Joint
a) ant & post tibiofibular lig
b) interosseos membrane
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Muscles
4 compartments anterior , deep , superficial and lateral
i) anterior - tibialis anterior - extensor digitorum longus - extensor hallucis longus and peroneous tertius
ii) deep - tibialis posterior - flexor digitorum longus - flexor hallicus longus
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iii) superficial - gastrocnemius - soleus, plantaris
iv) lateral - peroneus brevis , peroneus longus
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Ankle Movements
Plantarflexion Dorsiflexion Inversion Eversion
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General Ligament Sprains
1st, 2nd, 3rd degree
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Common Lower Leg & Ankle Injuries
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Inversion Ankle Sprain
more common than eversion because of ligament and bony support
stress is applied to the lateral side of the foot during plantar flexion and inversion
most often injuring the Anterior Talofibular ligament (ATF)
if stress is continued the Calcaneal Fibular Lig (CF) may be injured as well
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individual will report cracking or tearing sound at time of injury
swelling and ecchymosis will be rapid and diffuse
point tenderness over ATF may extend over CF
Rx - PIER, modalities -horseshoe pad Should probably xray to rule out any
possible fractures
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http://www.youtube.com/watch?v=SjprI020XQ0&feature=related
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Eversion Ankle Sprain
less common than lateral ankle sprains because of strong deltoid ligament, thus many are associated with fibular fractures
mild to moderate pain with ankle eversion slower and less evident swelling point tenderness over deltoid ligament Rx – X-ray, PIER, modalities -horse shoe
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First Aid Care
Immediately apply ice, compression and elevate
Apply a horseshoe or doughnut pad, keep it in place with a elastic wrap.
Have athlete rest , use crutches
If needed refer to physician or hospital for x-rays .
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Syndesmotic ankle sprain
AKA: high ankle sprain Approximately 10 – 15% of all ankle
sprains involve the syndesmosis 30 % for collision sports ( football etc) MOI – almost always involves a direct
blow to the lateral aspect of the leg with foot planted in external rotation
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s/s
Min lateral swelling Possible med swelling Pain in anterolateral lower leg Point tenderness over the AITF lig , the
interosseus membrane Pont tenderness over the ATF and possibly the
sup ATF lig Disomfort /pain with DF ( AROM ) Loss of ankle function
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First Aid Care Immediately apply ice, compression
and elevate Apply a horseshoe or doughnut pad,
keep it in place with a elastic wrap. Have athlete rest , use crutches , may
want to put in walking boot or cast for short period of time
If needed refer to physician or hospital for xrays .
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Achilles Tendon Strain or Rupture probably the most severe
acute muscular problem in lower leg
75% seen in males between 30 - 50 years
mechanism of injury - usually pushing off of the forefoot while knee is extending (racquet sports )
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most ruptures occur 1 to 2 inches proximal to the distal attachments of the tendon on the calcaneus
individual experiences sharp pain and hears or feels a POP in the tendon region - often described as a gun shot sound
a common sensation is one of being hit in the back of the leg
visible defect in the tendon
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inability to actively extend the foot (especially against resistance)
swelling - bruising and a palpable defect in the tendon
immediate referral to physician
http://www.youtube.com/watch?v=AmDi08rlR3I&feature=fvw
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First Aid Care
Immediately apply ice, compression and elevate
Immobilize the area in a splint or walking boot.
Have athlete rest , use crutches Send to hospital or nearest medical
facility.
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Achilles Tendinitis
most common in lower leg tight heel cord – hyper-pronation -
repetitive heel running - a recent change in shoes or running surfaces - increase in distance or intensity
pain present during and after activity
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increases with passive dorsiflexion and resisted plantar flexion
point tenderness - diffuse or localized swelling
aching or burning in the posterior heel occasionally fine crepitation can be
palpated in the tendon with movement Rx - PIER, Modalities, NSAIDS-heel lifts -
reduced activity (rest) - especially running
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Lower Leg Contusion
usually gastroc results in immediate pain and weakness
and loss of function haemorrhage and muscle spasm quickly
lead to a tender firm mass that is easily palpable
ice on a mild stretch care must be taken for myositis ossificans
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Exercise Induced Compartment Syndrome 50-60% are anterior – characterised
by exercise induced pain and swelling that is relieved by rest
exercise induced aching leg pain and a sense of fullness, both over the involved compartment
symptoms are almost always relieved with rest, usually with in 20 minutes
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exercise will produce swelling and tenderness
to confirm a intra-compartmental pressure must be measured
RX involves stretching and strengthening , PIER, and NSAIDS
If symptoms persist , surgery is recommended
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Muscle Spasms and Cramps
fatigue , loss of fluids or electrolyte,
acute treated with ice , pressure and slow static stretch
prevention - adequate water intake (electrolyte solution) - regular stretching program
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Lower Leg Strain
may be acute or chronic acute may be result of tearing followed by
the inability to walk without pain point tenderness, swelling and muscle
weakness will be present Rx - PIER, modalities, depends on
severity
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Medial Tibial Stress Syndrome AKA : Shin splints Microscopic tears in the muscle
attachment site on posterior medial border
pain along the posterior-medial tibial border
usually in the distal third
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Possible factors - excessive pronation , prolonged pronation , recent training changes (speed, form , running surface , distance)
pain usually present at start of activity ,but decreases with activity only to return after activity, later stages pain present at all times - may restrict activity
RX - PIER, NSAIDS, (modalities) activity modification (rest) - low impact - non impact - stretching and strengthening of intrinsic muscle of the foot
Real key is to find cause ….
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http://www.youtube.com/watch?v=o5DXFVI6mTA&feature=related