• Tiffany R Dugan, Mark G Hubert, Peter A Siska, Hans-Christoph Pape, and Ivan S Tarkin.
• Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Kaufmann Medical Building, 3471 Fifth Avenue, Pittsburgh, PA 15213, United States.
• Injury. 2013 Dec 1;44(12):1826-31.

IntroductionOpen supracondylar femur fractures are rare, complex injuries which occur in polytrauma patients and are complicated by bone loss, contamination, compromised soft tissues, and poor host condition. The purpose of this study is to demonstrate a successful treatment protocol for these challenging injuries.MethodsA consecutive series of 15 open supracondylar femur fractures in 14 polytrauma patients (ages 16-75, mean 41) were treated at one Level I trauma centre by a single surgeon. Fracture patterns included seven AO/OTA Type C2 and eight Type C3 fractures. All fractures were open and classified by Gustillo/Anderson as type IIIA (10 fractures) and type IIIB (five fractures). Stage I was performed within 24h and included thorough open fracture care and early definitive fixation with a laterally based locking device and antibiotic bead placement. Stage II was performed several months later (average 3.6 months) when the soft tissue envelope had revascularized and the polytrauma patient had recovered from their other injuries. Stage II consisted of either an anterior incision or subvastus approach to the distal femur, bone grafting, BMP application, and addition of medial column support to create rigid fixation.ResultsAll fractures (15/15) healed uneventfully. Union was determined by absence of pain and radiographic union in 3/4 cortices. Mean time to union was 4 months. There were no deep infections and alignment was maintained (average tibiofemoral angel of 5° of valgus) although several limbs were complicated by knee stiffness.ConclusionsHealing of open supracondylar femur fractures with critical sized bone defects requires diligent surgical timing in order to optimise the host and wound bed. Thorough initial debridement and early definitive fixation halt ongoing soft tissue injury, restores length and alignment, and allow for sterilisation of the wound. After patients have recovered from their other injuries and the soft tissue sleeve has revascularized, bone grafting with BMP supplementation and medial column plating allows for rigid fixation of the femur and offers the biology these fracture patterns require for successful union without infection.Copyright © 2013 Elsevier Ltd. All rights reserved.

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