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©2017 MFMER | slide-1
HUMERAL SHAFT FRACTURES: ORIF, IMN, NONOP…What to do?
TRAUMA 101 2018 – FRACTURE CARE FOR THE COMMUNITY ORTHOPEDIST
William W. Cross III, MDAssistant Professor
Division of Orthopaedic TraumaChair, Division of Community Orthopedic Surgery
Vice Chair, Department of Orthopedic SurgeryMayo Clinic
Rochester, MN
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DISCLOSURES Independent Device Design contract related to SI joint
fusion with Mayo Clinic Ventures and CoorsTek Medical
None related to this talk
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GOALS AND OBJECTIVES
• Why the humerus is unique• Principles of nonoperative treatment• Surgical indications• Pros and cons of plating and nailing• How to manage radial nerve injury
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HUMERAL SHAFT FRACTURES
• Different from other diaphyseal fractures• Acceptable deformity much greater
• Shoulder ROM
• Leg length inequality ≠ arm length inequality
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HUMERAL SHAFT FRACTURESNON-OP WORKS!
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Hanging Arm Cast
Coaptation Splint
Velpeau
Abduction Brace
Functional Brace
NONOPERATIVE TREATMENT
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TREATMENT PROTOCOL
• Minimal reduction
• Over lateral deltoid
• Upright position
• Until comfortable
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FUNCTIONAL BRACE
• Prefabricated vs. custom
• Snug as tolerated
• Add collar and cuff
• Encourage early motion
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©2017 MFMER | slide-9
FUNCTIONAL BRACE6 weeks 3 mos
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FUNCTIONAL BRACING
Balfour et al, JBJS 1982Zagorski, et al, JBJS 1988
Sarmiento et al, JBJS (Br) 1990Wallny et al, JOT, 1997
Sarmiento et al, JBJS 2000
UNION RATES: 94-100%
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Words of Wisdom• Apply coaptation splint in ER
• May check ONE x-ray• Let hang out for a week or so
• Change to functional brace• May check ONE x-ray
• See back q2-3 weeks for imaging evaluation• Must Must let gravity do its job• Watch out for varus-producing anatomy
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HUMERAL SHAFT FRACTURES
• Almost all patients have some minor deformity and shortening
• Acceptable Healing• 20° anterior angulation• 20° varus angulation• 2.5 cm shortening
• 40% have some loss of shoulder ROM• 25% have some loss of elbow ROM
Sarmiento et al, JBJS 82A: 478, 2000
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OPERATIVE INDICATIONS• OPEN FRACTURES
– Significant soft tissue injury that precludes bracing
• FLOATING ELBOW
• VASCULAR INJURY
• POLYTRAUMA
• PATHOLOGIC FRACTURES
• BRACHIAL PLEXOPATHY
• INTRA-ARTICULAR EXTENSION
• FAILURE OF NON-OPERATIVE MANAGEMENT
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Bilateral Fractures
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OPERATIVE TREATMENT
ORIF with plates
Antegrade nails
Retrograde nails
Flexible nails
Flexible locked nails
External fixation
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EXTERNAL FIXATION
• Neurologic risk• Radial nerve
• Elbow and shoulder stiffness• Pin tract infections• Malunion• Rarely used definitively
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EXTERNAL FIXATION
• Massive soft tissue injury/contamination
• Vascular injury
• Severe polytrauma
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ANTEGRADE NAILING
• Closed technique• Load sharing• Mechanical advantages• Consider in:
• Pathologic fx• Segmental fx• Polytrauma• Osteoporosis
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ANTEGRADE NAILING
• Technical factors important:• Countersink nail• No fx distraction• Minimize cuff injury
• Rotator interval• Medial start point
• Avoid radial n. injury• Anatomic reduction or
expose
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OPEN REDUCTION INTERNAL FIXATION
• Anatomic reduction/ compression or bridging
• High union rates (96%)• Exposures extensile• Allows radial nerve protection• Early weight bearing
GOLD STANDARD
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OPEN REDUCTION INTERNAL FIXATION• Plate size:
• 4.5 broad LC-DCP• Historical
• 4.5 narrow LC-DCP• Current
• 3.5 LC-DCP• Future?
• Over-contour posterior plate• No shorties!!• Locking screws typically not necessary
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ANTEROLATERAL APPROACH
• Extensile• DP proximally
• “Cannot access distal quarter”• Retract biceps medially• Elevate brachialis
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©2017 MFMER | slide-26Triceps Split
Triceps SplitTriceps Sparing& nerve mobilization
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NAIL VS PLATE: PRT’s
Changulani et al., SICOT 2006Chapman et al., JOT 2000
McCormack et al., JBJS[Br] 2000Bolano et al., AAOS 1995
n Nonunion Infection Shoulder Pain
Radial Nerve
Reoperations
Plate 105 8 6 1 2 8
Nail 87 11 2 20 5 17
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RECOMMENDATION:Don’t need to explore early
Spontaneous recovery rate 90-95%
RADIAL NERVE PALSY?CLOSED FRACTUREPollack et al, JBJS, 1981
• 24 Radial Nerve Palsies• Incidence: 11%• All Resolved Eventually• 8% (2) Required Late Exploration
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RECOMMENDATION:Explore and ORIF
RADIAL NERVE PALSY?OPEN FRACTURE
Foster et al, JHS, 1993
• 14 Patients with open fractures• 64% (9) with nerve injury interposed or
lacerated
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RECOMMENDATION:Exploration not required
(More controversial)
CLOSED FRACTURERadial n palsy after reduction
Bostman et al., Acta Orthop Scand 1986
• 59 patients : immediate radial nerve palsy• Useful recovery: 46/59 (88%)
• 16 patients: secondary radial nerve palsy• Useful recovery: 14/16 (87.5%)
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• 30% don’t recover – explore early to explore1. Early nerve injury characterization, subsequent early
treatment – Time dependent repair and outcomes correlate
2. Early exploration is significantly easier3. Allows concomitant ORIF = quicker functional revocery
and rehab4. “ Facilitates” primary bone healing and decreases chances
of 2º bone healing with nerve entrapment
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RADIAL NERVE RECOVERY
• Average time to first sign of recovery: 7 weeks
• But may take as long as 6 months!• Average time to complete recovery: 6 months
• But may take as long as 21 months!
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Case example
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• 75 y/o active male• Non smoker• Right side weak from head
injury 1968• Mildly hemiparetic
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• 10 weeks after nonopmgmt trial
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3 weeks postop
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©2017 MFMER | slide-44
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3.5 months later
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©2017 MFMER | slide-46
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©2017 MFMER | slide-47
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Used with patient permission
![Page 49: HUMERAL SHAFT FRACTURES: ORIF, IMN, NONOP…What to do? · HUMERAL SHAFT FRACTURES: ORIF, IMN, NONOP …What to do? TRAUMA 101 2018 –FRACTURE CARE FOR THE COMMUNITY ORTHOPEDIST](https://reader035.vdocuments.us/reader035/viewer/2022062403/5fd56940f4d364572c481cb0/html5/thumbnails/49.jpg)
©2017 MFMER | slide-49
My Practice: Humeral Shaft Fractures• Patient history and desires• Trial of nonop management• Not 3 months!
• Pull trigger at 6 weeks• Plate is my implant preference (4.5 narrow, non-locked)
• Posterolateral approach (Gerwin-Hotchkiss)• Nailing-pendulum may swing back in favor
• Straight nails
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©2017 MFMER | slide-50
SUMMARY• Closed treatment in most injuries
• Early functional brace• Know multiple treatment options
• Customize care based on pt/injury factors• Know exposures• Plates work well – go long or go home!• Radial nerve injury ≠ surgery?? Discussion…• Technique, technique, technique!