Han Hyuk Soo, Seong Sang Cheol, Lee Sahnghoon, Lee Myung Chul
Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul, Korea.
Orthopedics. 2006 Oct;29(10 Suppl):S148-51.
A randomized prospective study was undertaken to compare the accuracy of rotational alignment of the femoral component in total knee arthroplasty using a nonimage-based navigation system and a conventional method. The authors randomly used two methods and implants in 55 patients and measured the angles between posterior condylar lines and transepicondylar axes on computed tomography images before and after surgery. Analysis showed no significant differences between the two techniques in mean errors (P>.05), but the navigation system showed higher accuracy than the 3 degrees external rotation method by reducing outliers.
进行了一项随机前瞻性研究，以比较使用非图像导航系统和传统方法在全膝关节置换术中股骨组件旋转对线的准确性。作者在55例患者中随机使用两种方法和植入物，并在手术前后的计算机断层扫描图像上测量后髁线与经髁轴之间的角度。分析表明，两种技术在平均误差方面无显著差异（P>0.05），但导航系统通过减少异常值显示出比3度外旋方法更高的准确性。
