【摘要】 目的  探讨人工髋关节置换术后股骨假体周围骨折的治疗方法及疗效。 方法  回顾分析2001年3月-2009年3月11例股骨假体周围骨折，均为人工股骨柄周围骨折，Vancouver B1型假体无明显松动，均行切开复位，用形状记忆合金环抱器内固定并取髂骨或人工骨植骨治疗。术后随访9~25个月，平均13个月。 结果  术后3~6个月，11例骨折均愈合，平均愈合时间4.5个月。患者无感染、假体松动脱位、内固定断裂和深静脉血栓形成。根据HARRIS髋关节功能评估法估分:优6例，良4例，可1例。 结论  形状记忆合金环抱器不损害假体周围骨皮质及假体或其骨水泥层，操作简便，是治疗人工髋关节置换术后股骨假体周围骨折的较理想的一种方法。
【Abstract】 Objective  To investigate the therapeutic method and effect of periprosthetic femur fracture after hip arthroplasty. Methods  Eleven patients with fracture around the prosthetic femoral stem were included. Prostheses of Vancouver B1 were fixed tightly. All patients accepted reposition enchevillement, intracontention with shape memory alloy encircled fixer, and bone grafting with autologous ilium or artificial bones. The follow-up was nine to 25 months,with the average 13 months. Results  All the fracures healed in three to six months after treatment,the average healing time was 4.5 months. There was no infection, loosing or dislocatin of prosthesis. Cracking of internal fixation and thrombosis of deep venouses did not occured either. The excellent healing rate was 10/11 according to Harris hip score. Conclusion  Intracontention with shape memory alloy encircled fixer is a good method to fix the fracture around the femur prosthesis, which is easy to manifacture and does no harm to bone cortex around the prosthesis, along with the prosthesis itself and the bone cement layer.

Citation： SUN Chuanjiang,ZHUANG Jingsheng,GAO Yun. Periprosthetic Femur Fracture after Hip Arthroplasty by Amplectant Machine. West China Medical Journal, 2010, 25(9): 1636-1637. doi: Copy