Chin Pak Lin, Yang Kuang Ying, Yeo Seng Jin, Lo Ngai Nung
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore.
J Arthroplasty. 2005 Aug;20(5):618-26. doi: 10.1016/j.arth.2005.04.004.
The aim of this study is to assess the radiological outcome of conventional techniques versus computer-navigated surgery for total knee arthroplasty. Ninety patients with knee arthritis were prospectively randomized into 3 groups: conventional technique: extramedullary (EM) and intramedullary (IM) tibia guide versus computer navigation surgery (CAS). Two surgeons performed all procedures. Standardized long leg coronal and sagittal x-rays were evaluated by a blinded assessor. Our results showed that CAS had greater consistency and accuracy in implant placement. In the coronal view, 93.3% in the CAS group had better outcomes compared with EM (73.4%) and IM (60.0%). In the sagittal axis, 90.0% CAS also had better outcomes compared with EM (63.3%) and IM (76.7%). Computer-navigated total knee arthroplasty helps increase accuracy and reduce "outliers" for implant placement.
本研究的目的是评估全膝关节置换术中传统技术与计算机导航手术的放射学结果。90例膝关节炎患者被前瞻性随机分为3组：传统技术组：髓外（EM）和髓内（IM）胫骨导向器组与计算机导航手术（CAS）组。两名外科医生完成所有手术。由一名不知情的评估者对标准化的长腿冠状位和矢状位X线片进行评估。我们的结果表明，计算机导航手术在植入物放置方面具有更高的一致性和准确性。在冠状面上，计算机导航手术组93.3%的患者结果优于髓外组（73.4%）和髓内组（60.0%）。在矢状轴上，计算机导航手术组90.0%的患者结果也优于髓外组（63.3%）和髓内组（76.7%）。计算机导航全膝关节置换术有助于提高植入物放置的准确性并减少“异常值”。
