Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takaramachi, Kanazawa, Ishikawa, 920-8641, Japan.
Int Orthop. 2014 Apr;38(4):711-6. doi: 10.1007/s00264-013-2166-0. Epub 2013 Nov 19.
This study investigates the accuracy of a computed tomography (CT)-based navigation system for accurate acetabular component placement during revision total hip arthroplasty (THA).
We performed a retrospective review of 30 hips in 26 patients who underwent cementless revision THA using a CT-based navigation system; the control group consisted of 25 hips in 25 patients who underwent cementless primary THA using the same system. We analysed the deviation of anteversion and inclination angles among the pre-operative plan, intra-operative records from the navigation system and data from postoperative CT scans.
There were no significant differences between groups (P < 0.05) in terms of mean deviation between pre-operative planning and postoperative measurements or between intraoperative records and postoperative measurements.
CT-based navigation in revision THA is a useful tool that enables the surgeon to implant the acetabular component at the precise angle determined in pre-operative planning.
本研究旨在探讨基于计算机断层扫描（CT）的导航系统在修正全髋关节置换术（THA）中髋臼组件准确放置中的准确性。
我们对 26 名患者的 30 髋进行了回顾性研究，这些患者均使用基于 CT 的导航系统进行了非骨水泥修正 THA；对照组为 25 名患者的 25 髋，他们接受了相同系统的非骨水泥初次 THA。我们分析了术前计划、导航系统术中记录与术后 CT 扫描数据之间的前倾角和倾斜角偏差。
两组之间在术前计划与术后测量之间或术中记录与术后测量之间的平均偏差无显著差异（P＜0.05）。
CT 导航在修正 THA 中是一种有用的工具，可使外科医生能够以术前规划确定的精确角度植入髋臼组件。
