改良EPSTR预防全髋置换术后脱位

目的：探讨改良EPSTR法预防全髋置换术后脱位的临床疗效。方法：2006年1月至2007年5月,在85例（87髋）全髋置换中采用改良EPSTR法对后路结构进行修补,男39例,女46例;年龄62～85岁,平均69.5岁。新鲜股骨颈骨折58髋,股骨头坏死25髋,髋关节骨关节炎3髋,股骨粗隆间骨折内固定失败1髋。结果：85例均获随访,时间8～24个月,平均15个月,没有发现髋关节后脱位、髋关节外旋挛缩畸形和大转子骨折,术后6个月Harris评分平均为（89.2±4.5）分。结论：改良EPSTR法是一种预防全髋置换术后脱位的有效和简捷的方法,具有临床应用价值。

Improved EPSTR for prevention of dislocation after total hip arthroplasty

Objective: To explore the effect of improved EPSTR on prevention of dislocation after total hip arthroplasty. Methods: From January 2006 to May 2007, the posterior structures were repaired using improved EPSTR in 85 cases (87 hips) of total hip arthroplasty, which involved 39 males and 46 females,with an average age of 69.5 years(range,from 62 to 85 years). Fifty-eight cases were of fresh femoral neck fracture,25 cases were of aseptic necrosis of femoral head,3 cases were of osteoarthritis,1 case was of a internal fixation failure of femoral intertrochanteric fracture. Results: All 85 cases were followed up for 8-24 months(average 15 months). None of these 85 patients had posterior dislocation,external rotation contracture and greater trochanter fracture. The Harris score at the 6th month postoperatively was 89.2±4.5. Conclusion: Improved EPSTR is an effective,simple and timesaving method in prevention of dislocation after total hip arthroplasty, it has clinical application value.