全膝关节置换治疗严重膝外翻畸形的临床研究

目的]探讨全膝关节置换术治疗严重膝外翻畸形的临床疗效和手术方法.方法]2008年6月～2010年3月,15例(18膝)严重膝外翻患者,术前X线测量FTA角,检查膝关节活动度,并且使用美国膝关节协会评价标准KSS评分及功能评分.手术方法采用髌旁外侧入路、针对性截骨、选择性的外侧软组织松解、安装限制性小的假体或非限制型假体进行全膝关节置换术.术后测量FTA角,术后定期随访检查膝关节活动度并行KSS评分及功能评分,评价手术效果.结果]所有患者均获得随访,随访时间8～28个月.FTA角由术前的27.0°(20°～35°)降低至4.5°(0°～9°);膝关节活动度由术前的79.4°(70°～90°)提高到109.7°(100°～120°);KSS评分由术前的28.9分(15～40分)提高到88.7分(85～95分),功能评分由术前的23.0分(0～40分)提高到89.1分(85～95分);差异均有非常显著性意义(P<0.01).结论]所有患者行全膝关节置换术后外翻畸形基本得到纠正,所有病例术后无明显疼痛,行走及上下楼梯等功能较术前明显改善.说明对于严重膝外翻畸形的患者,采用髌旁外侧入路、针对性截骨、选择性的外侧软组织松解、安装限制性小的假体或非限制型假体实施人工全膝关节置换术治疗,可以取得满意的临床效果,从而明显改善患者膝关节的功能,提高患者的生活质量.

Clinical research on total knee arthroplasty for severe deformity

Objective]To evaluate the clinical efficacy and surgical methods of the total knee arthroplasty(TKA) for severe senu valsum deformity. Methods]Fifteen patients(18 knees) were enrolled from this hospital of during June 2008 to March 2010.To measure the FTA angles,the ROM of the knee joint,KSS and function scores before the TKA operation,then patellar lateral approach,targeted osteotomy,selective lateral soft tissue release and installed restrictive or non-restrictive limited small prosthesis were selected ...