人工关节置换治疗内固定失败的股骨转子间骨折

目的 分析人工关节置换治疗内固定失败的股骨转子间骨折的临床效果及手术技术. 方法 选择2001年- 2009年内固定治疗失败的股骨转子间骨折18例,动力髋螺钉(DHS)固定失败16例,股骨近端防旋螺钉(PFNA)固定失败2例.失败后对13例行人工双极股骨头置换,5例行全髋关节置换.Harris评分评估术后结果. 结果 12例获得完整随访,随访时间1～7年,平均2.3年.本组患者2例出现术中并发症；3例术后3个月内死亡,3例失访；l例出现关节脱位,闭合复位牵引治疗.患者疼痛均较术前明显减轻或消失,2例活动后有中度疼痛,4例活动后出现轻微疼痛.Harris评分术前平均34分,术后1年平均83分. 结论 人工关节置换能恢复髋关节功能,是治疗内固定失败的股骨转子间骨折的有效治疗方法.

Effect of hip joint replacement on the femoral intertrochanteric fracture with failed internal fixation

Objective To evaluate the surgical procedures and clinical efficacy of endoprosthetic replacement as a salvage procedure for intertrochanteric fracture suffered failure of internal fixation.Methods The study involved 18 intertrochanteric fracture patients that suffered failed internal fixation from 2001 to 2009,including 16 patients with failed dynamic hip screw (DHS) fixation and two with failed proximal femoral nail anti-rotation (PFNA).The patients were at mean age of 76.5 years (range,58-92 years).The treatment methods included total hip arthroplasty in five patients and the bipolar hemiarthroplasty in 13.Harris score was used to evaluate the function outcome during the follow-up.Results The mean operation time lasted for 115 minutes,with intraoperative blood loss of 500 ml.Two patients presented with intraoperative complications.Of all the patients,three patients died within three months after operation and three patients were lost to follow-up.The remaining 12 patients received complete follow-up for a mean of 2.3 years ( range,1-7 years).One patient with hip joint dislocation was treated with closed reduction and distraction for three weeks.At the latest follow-up,the pain disappeared or was reduced in all the patients,including two patients with moderate pain and four with mild pain after some movements.The average Harris score was increased from preoperative 34 points to 83 points at one year after operation.Conclusions Endoprosthetic replacement is an effective salvage procedure for the failed treatment of the intertrochanteric fracture,as it can attain satisfactory pain relief and functional improvement.