Maruyama Shigeki, Yoshiya Shinichi, Matsui Nobuzo, Kuroda Ryosuke, Kurosaka Masahiro
Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan, Japan.
J Arthroplasty. 2004 Apr;19(3):349-53. doi: 10.1016/j.arth.2003.09.010.
A prospective, randomized comparison of posterior cruciate-retaining (PCR) and posterior stabilized (PS) total knee arthroplasties (TKAs) was conducted in 20 patients who underwent bilateral TKAs for osteoarthritis. All procedures were performed by a single surgeon. One knee was implanted with a PCR TKA, and a contralateral knee with a PS TKA. Both prosthetic designs were of the same TKA series, with comparable surface geometries. Patients had a clinical and radiographic evaluation at a mean of 31.7 months for PCR TKAs and 30.6 months for PS TKAs postoperatively. There were no significant differences between the PCR and PS TKAs in postoperative knee scores. However, postoperative improvement in range of motion was significantly superior in the PS group.
对20例因骨关节炎接受双侧全膝关节置换术（TKA）的患者进行了一项前瞻性随机对照研究，比较后交叉韧带保留型（PCR）和后稳定型（PS）全膝关节置换术。所有手术均由同一位外科医生完成。一侧膝关节植入PCR型TKA，对侧膝关节植入PS型TKA。两种假体设计均来自同一TKA系列，表面几何形状相似。术后，PCR型TKA患者的平均随访时间为31.7个月，PS型TKA患者为30.6个月，均接受了临床和影像学评估。术后膝关节评分方面，PCR型和PS型TKA之间无显著差异。然而，PS组术后活动范围的改善明显更优。
