Parker M J
Department of Orthopedics, Peterborough District Hospital, UK.
Acta Orthop Scand. 1996 Aug;67(4):329-32. doi: 10.3109/17453679609002325.
The radiographic characteristics of 27 patients with a trochanteric fracture treated with a sliding hip screw in which fixation failure occurred, were compared with 74 cases having uneventful fracture union. Femoral medialization was commoner in specific fracture types, particularly if there was comminution of the lateral femoral cortex at the site of insertion of the lag screw. Femoral medialization was strongly associated with fixation failure, with a 7-fold increase in the risk of failure if medialization at more than one third occurred. These observations indicate that the value of implants preventing femoral medialization in specific types of trochanteric fracture merit further evaluation.
对27例采用滑动髋螺钉治疗且发生固定失败的转子间骨折患者的影像学特征，与74例骨折顺利愈合的病例进行了比较。在特定骨折类型中，股骨内移更为常见，特别是在拉力螺钉插入部位的股骨外侧皮质存在粉碎时。股骨内移与固定失败密切相关，如果内移超过三分之一，失败风险会增加7倍。这些观察结果表明，在特定类型的转子间骨折中，防止股骨内移的植入物的价值值得进一步评估。
