Hsieh Pang-Hsin, Chang Yu-Han, Shih Chun-Hsiung
Department of Orthopedics, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Acta Orthop. 2006 Aug;77(4):591-7. doi: 10.1080/17453670610012656.
Periacetabular osteotomy (PAO) is an effective but technically demanding surgical procedure. We evaluated the efficiency of computer-assisted navigation in PAO and compared it with the traditional approach.
We performed a randomized study of 36 patients undergoing PAO using either the CT-based, computer-assisted navigation technique or the conventional approach. The operative details, radiographic results, and functional outcomes were compared between groups.
Patients in the conventional surgery group required an average of 4.4 (2-7) images of intraoperative radiographs, whereas only 0.6 (0-1) images were required in the navigation group. The operation time was 21 min shorter with computer-assisted navigation. No significant difference with regard to operative blood loss, transfusion requirement, correction of deformity, and functional improvement was found. Complications such as intraarticular damage, osteonecrosis, or neurovascular injury were not encountered.
A computer-assisted navigation system is a feasible tool to provide real-time image guidance and facilitate PAO. However, it offers little additional benefit when the surgery is done by an experienced surgeon.
髋臼周围截骨术（PAO）是一种有效的手术，但技术要求较高。我们评估了计算机辅助导航在PAO中的效率，并将其与传统方法进行比较。
我们对36例行PAO的患者进行了一项随机研究，这些患者分别采用基于CT的计算机辅助导航技术或传统方法。比较两组之间的手术细节、影像学结果和功能结局。
传统手术组患者平均需要4.4（2 - 7）张术中X线片，而导航组仅需要0.6（0 - 1）张。计算机辅助导航使手术时间缩短了21分钟。在手术失血、输血需求、畸形矫正和功能改善方面未发现显著差异。未遇到关节内损伤、骨坏死或神经血管损伤等并发症。
计算机辅助导航系统是提供实时图像引导并促进PAO的可行工具。然而，当由经验丰富的外科医生进行手术时，它几乎没有额外的益处。
