Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan; Chang Gung University of Science and Technology, Chiayi, Taiwan.
Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Chiayi, Taiwan.
J Arthroplasty. 2014 Dec;29(12):2363-8. doi: 10.1016/j.arth.2013.12.014. Epub 2013 Dec 17.
Arthritic knees with advanced valgus deformity present with soft tissue and osseous anomalies that make total knee arthroplasty (TKA) difficult. We conducted a retrospective chart review of 41 patients (51 knees) to determine whether computer-assisted surgery-TKA (CAS-TKA) is superior to TKA using conventional guiding systems. A significantly higher rate of lateral retinaculum release as well as outlier of sagittal mechanical axes and position of the femoral component (femoral flexion and femoral rotational angle) was recorded in the conventional TKA group versus the CAS-TKA group. Both groups had significant postoperative improvement in clinical performance, but results did not differ significantly between groups. Despite its radiographic benefit, CAS-TKA showed no significant benefit over TKA in short-term clinical functional outcomes when performed by an experienced surgeon.
患有晚期内翻畸形的关节炎膝关节表现出软组织和骨骼异常，这使得全膝关节置换术（TKA）变得困难。我们对 41 名患者（51 膝）进行了回顾性图表审查，以确定计算机辅助手术-TKA（CAS-TKA）是否优于使用传统导向系统的 TKA。在常规 TKA 组中，外侧支持带松解率以及矢状机械轴和股骨组件位置（股骨屈曲和股骨旋转角度）的离群值明显更高。两组患者的临床表现均有显著改善，但组间结果无显著差异。尽管具有放射学优势，但由经验丰富的外科医生进行时，CAS-TKA 在短期临床功能结果方面并未显示出优于 TKA 的明显优势。
