摘要人工全髋关节置换术(total hip arthroplasty,THA)是股骨头坏死、骨关节炎、类风湿性关节炎、先天性髋关节发育不良等终末期髋关节病变的有效治疗方法。据报道,2005—2030年期间美国初次THA数量将增加174%,达到每年57.2万例,髋关节翻修数量增加137%。随着我国髋关节置换数量的不断上升,全髋关节翻修术(revision total hip arthroplasty,RTHA)数量也将越来越多。由于骨量的减少,自发性骨折在翻修术后比初次THA术后更常见。有研究提示,翻修术后假体周围骨折的发生率约为初次THA术后假体周围骨折的3倍,为每年每10万人中908人发生假体周围骨折。作者收集2例全髋关节翻修术后发生假体柄断裂患者,并针对假体断裂原因及其对策进行总结分析,现报告如下。
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