• Kanda Gao, Wei Gao, Fan Li, Jie Tao, Jianhua Huang, Haoqing Li, and Qiugen Wang.
• Department of Orthopaedics, Shanghai First People's Hospital, Shanghai Jiaotong University, 100 Haining Rd., Hongkou District, Shanghai, China. gaokanda@sina.com.cn
• Injury. 2011 Jul 1; 42 (7): 675-81.

ObjectivesIpsilateral concomitant fractures of proximal extracapsular and distal femur are rare injuries and pose a great challenge for orthopaedics. In this study, we reviewed and examined the approaches and outcomes of this complex injury.MethodsFrom August 2002 to January 2010, seven patients (six males and one female) with a mean age of 39 years (range, 20-48 years) were involved in the study. They had suffered from ipsilateral concomitant fractures of proximal extracapsular and distal femur, with two cases of unstable intertrochanteric fractures, three cases of subtrochanteric fractures and two cases of extracapsular femoral neck fractures. The distal femoral fractures were categorised based on the Arbeitsgemeinschaft für Osteosynthes (AO) classification: 2, A3; 2, C1; 2, C2 and 1, C3, and the proximal femoral fractures were stabilised via nailing, whilst the distal ones via less-invasive stabilisation system-distal femur (LISS-DF) plating in all six patients. In the one with the 'floating knee' injury, the subtrochanteric fracture was stabilised by reversed LISS-DF, and the distal one, by retrograde nailing. The healing of each femoral fracture was evaluated radiologically and clinically with follow-up. The functional outcomes were assessed through the Friedman and Wyman system.ResultsThe mean follow-up interval was 2 years (range, 1.5-3 years). Six femoral fractures healed uneventfully, whilst the one with the 'floating knee' injury developed a delayed union postoperatively due to metal failure in 6 months, and, eventually, a malunion with coxa vara deformity 1.5 years later. The clinical functions at the final follow-up were found to be good in five cases, and fair and poor in one case each.ConclusionThe nailing of a proximal femoral fracture and an LISS-DF fixation of a distal one could be a reliable and effective approach to handle ipsilateral concomitant fractures of a proximal extracapsular and distal femur.Copyright © 2010 Elsevier Ltd. All rights reserved.

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