保留梨状肌防止人工全髋置换术后并发症的临床研究

Clinical study on prevention of complications in total hip arthroplasty following piriformis-sparing approach

目的探讨保留梨状肌施行人工全髋置换术后并发症。方法将2015年1月-2017年7月期问南方医科大学顺德医院附属杏坛医院收治的128例人工全髋置换术的患者随机分为两组，对照组64例给予切断梨状肌治疗；试验组64例保留断梨状肌治疗，比较两组术后临床疗效及6个月内发生的脱位率。结果两组患者临床疗效比较，差异无统计学意义（P〉0．05）。术后6个月内随访，试验组术后早期后脱位率低于对照组，两组比较有统计学意义（P〈0．05），髋关节功能恢复良好。结论人工全髋置换后外侧入路保留梨状肌能够降低脱位发生率，减少术后并发症，值得临床应用。

Objective To investigate the dislocation rate of total hip arthroplasty following piriformis-sparing approach. Methods A total of 128 cases with total hip arthroplasty who were admitted Xingtan Hospital in between January 2015 and July 2017 were randomly divided into two groups： treatment group with piriformis-sparing approach; control group with cut off the piriformis. The curative effects and dislocation rate within 6 months after operation were compared between two groups. Results There was no significant difference in curative effects between two groups （P〉 0.05）. The dislocation rate within 6 months in treatment group was lower than those of control group （P〈0.05）. Conclusion The piriformis-sparing approach in total hip arthroplasty is a possible surgical technique. It can reduce the incidence of dislocation of the total hip arthroplasty.