Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, 10 Hyoryeong-ro, Seocho-gu, Seoul 06698, Republic of Korea.
Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
Biomed Res Int. 2017;2017:2034782. doi: 10.1155/2017/2034782. Epub 2017 Aug 3.
This retrospective study was to determine if patient-specific instrumentation (PSI) for total knee arthroplasty (TKA) leads to shortened surgical time through increased operating room efficiency according to different tibial PSI designs. 166 patients underwent primary TKA and were categorized into three groups as follows: PSI without extramedullary (EM) tibial guide (group 1, = 48), PSI with EM tibial guide (group 2, = 68), and conventional instrumentation (CI) group (group 3, = 50). Four factors were compared between groups, namely, operative room time, thickness of bone resection, tibial slope, and rotation of the component. The mean surgical time was significantly shorter in the PSI with EM tibial guide group (group 2, 63.9 ± 13.6 min) compared to the CI group (group 3, 82.8 ± 24.9 min) ( < 0.001). However, there was no significant difference in the PSI without EM tibial guide group (group 1, 75.3 ± 18.8 min). This study suggests that PSI incorporating an EM tibial guide may lead to high operative efficiency in TKA compared to CI. This trial is registered with KCT0002384.
这项回顾性研究旨在确定全膝关节置换术（TKA）中使用患者特异性截骨（PSI）是否会通过提高手术室效率来缩短手术时间，根据不同的胫骨 PSI 设计。166 名患者接受了初次 TKA，并分为三组：无髓内（EM）胫骨导向器的 PSI（组 1，n = 48）、有 EM 胫骨导向器的 PSI（组 2，n = 68）和常规器械（CI）组（组 3，n = 50）。在组间比较了四个因素，即手术时间、骨切除厚度、胫骨倾斜度和组件旋转。与 CI 组（组 3，82.8 ± 24.9 分钟）相比，带有 EM 胫骨导向器的 PSI 组（组 2，63.9 ± 13.6 分钟）的平均手术时间明显缩短（<0.001）。然而，无 EM 胫骨导向器的 PSI 组（组 1，75.3 ± 18.8 分钟）之间没有显著差异。本研究表明，与 CI 相比，结合 EM 胫骨导向器的 PSI 可能会提高 TKA 的手术效率。本试验在 KCT0002384 注册。
