Department of Orthopedic Surgery and Rheumatology, National Hospital Organization Nagoya Medical Center.
Clinical Research Center, National Hospital Organization Nagoya Medical Center.
Kurume Med J. 2023 Apr 4;68(1):1-8. doi: 10.2739/kurumemedj.MS681003. Epub 2023 Feb 8.
Currently, there is no surgical assistance system that can perform a three-dimensional (3D) planned total hip arthroplasty (THA) by methods other than surgical assistance navigation or robots. However, they are expensive, cumbersome, and subject to additional invasiveness, so there is a need for a simpler and less expensive 3D surgical support system. In this study, THA was performed using the anterolateral approach (Watson-Jones) in the supine position in 23 subjects to examine the efficacy and safety of a patient-specific femoral guide linked to 3D surgery support software. In 48% of the subjects, the difference in anterior torsion angle from the preoperative plan was within ±5 degrees, while in 83% of the subjects, the difference was within ±10 degrees. The 95% confidence interval (4.61-8.70) of the absolute difference did not fall below the pre-defined threshold of 7.2 degrees (p = 0.293). No adverse events were observed other than 2 cases (8.7%) of hemorrhage that required a blood transfusion. We confirmed the efficacy and safety of the patient-specific femoral guide in anterolateral supine approach THA.
目前，尚无手术辅助系统可以通过手术辅助导航或机器人以外的方法进行三维（3D）计划全髋关节置换术（THA）。然而，这些系统昂贵、繁琐且需要额外的侵入性，因此需要一种更简单、更经济的 3D 手术支持系统。在这项研究中，我们对 23 名患者采用仰卧位的前外侧入路（Watson-Jones）进行了 THA，并检验了与 3D 手术支持软件相关联的患者特异性股骨导板的疗效和安全性。在 48%的患者中，术前计划的前扭转角度与实际角度的差异在±5 度以内，而在 83%的患者中，两者的差异在±10 度以内。绝对差值的 95%置信区间（4.61-8.70）未低于 7.2 度的预定阈值（p=0.293）。除了 2 例（8.7%）需要输血的出血病例外，未观察到其他不良事件。我们证实了患者特异性股骨导板在仰卧位前外侧入路 THA 中的有效性和安全性。
