双锥面高抛光股骨柄治疗老年股骨颈骨折的临床应用

目的探讨抛光型股骨柄假体在老年股骨颈骨折假体置换中的应用。方法使用双锥面高抛光股骨柄假体固定治疗老年股骨颈骨折患者63例，股骨假体固定采用第二代骨水泥技术，分析其临床效果。结果术后随访3个月，根据髋关节X线片。所有患者均无髋关节脱位发生。双下肢长度差异为（3．1±1．2）mm。术后3个月髋关节Harris评分为（86±10）分。结论抛光型股骨柄假体通过其在假体设计和假体固定上的改进，可以比较好地解决老年人股骨颈骨折假体置换中所遇到的假体固定闲难等问题。

Polished cemented stem for hip arthroplasty in aged patients with femoral neck fracture

Objective To explore the application of polished cemented stems for hip arthroplasty in old patients with femoral neck fracture. Methods Sixty-three cases of hip arthroplasty were carried out in Beijing Jishuitan Hospital from March 2001 to November 2006 for the old patients with femoral neck fracture. The mean age of the patients at the time of replacement was 75.3 years old （ranging from 66 to 87 years）. The operations were done with polished stems which were fixed with the so-called second-generation cementing techniques. Clinical results were analyzed. Results All patients were followed up 3 months after operation. The quality of cement was evaluated according to the radiograph of the hip. Fifty-six cases were rated as Grade A and 7 Grade B, without Grade C or D. There was no dislocation of the hip. The difference between the lengths of both lower extremities was （3.4± 1.8） mm and the average Harris score was 86± 10 at the time of follow-up. Conclusions With improved femoral component design and method of fixation, the polished cemented stem can resolve such problems as the difficulties in fixation and in soft tissue balance in hip arthroplasty for the old patients with femoral neck fracture.