全髋关节置换术中准确的下肢长度测量：计算机导航与一种简单手动测量装置的比较
Accurate leg length measurement in total hip arthroplasty: a comparison of computer navigation and a simple manual measurement device.
作者信息
Ogawa Kyoichi, Kabata Tamon, Maeda Toru, Kajino Yoshitomo, Tsuchiya Hiroyuki
机构信息
Department of Orthopaedic Surgery, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
出版信息
Clin Orthop Surg. 2014 Jun;6(2):153-8. doi: 10.4055/cios.2014.6.2.153. Epub 2014 May 16.
BACKGROUND
Several studies have shown that better placement of the acetabular cup and femoral stem can be achieved in total hip arthroplasty (THA) by using the computer navigation system rather than the free-hand alignment methods. However, there have been no comparisons of the relevant clinical advantages in using the computer navigation as opposed to the manual intraoperative measurement devices. The purpose of this study is to determine whether the use of computer navigation can improve postoperative leg length discrepancy (LLD) compared to the use of the measurement device.
METHODS
We performed a retrospective study comparing 30 computer-assisted THAs with 40 THAs performed using a simple manual measurement device.
RESULTS
The postoperative LLD was 3.0 mm (range, 0 to 8 mm) in the computer-assisted group and 2.9 mm (range, 0 to 10 mm) in the device group. Statistically significant difference was not seen between the two groups.
CONCLUSIONS
The results showed good equalization of the leg lengths using both computed tomography-based navigation and the simple manual measurement device.
背景
多项研究表明，在全髋关节置换术（THA）中，使用计算机导航系统比徒手对线方法能更好地放置髋臼杯和股骨柄。然而，与手动术中测量设备相比，使用计算机导航的相关临床优势尚无比较。本研究的目的是确定与使用测量设备相比，计算机导航的使用是否能改善术后下肢长度差异（LLD）。
方法
我们进行了一项回顾性研究，比较了30例计算机辅助全髋关节置换术与40例使用简单手动测量设备进行的全髋关节置换术。
结果
计算机辅助组术后下肢长度差异为3.0毫米（范围0至8毫米），设备组为2.9毫米（范围0至10毫米）。两组之间未观察到统计学上的显著差异。
结论
结果表明，基于计算机断层扫描的导航和简单手动测量设备在下肢长度均衡方面效果良好。
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