Ishii Yoshinori, Noguchi Hideo, Matsuda Yoshikazu, Takeda Mitsuhiro, Kiga Hiroshi, Toyabe Shin-Ichi
Ishii Orthopaedic and Rehabilitation Clinic, 1089 Shimo-Oshi, Gyoda, Saitama 361-0037, Japan.
Arch Orthop Trauma Surg. 2008 Aug;128(8):795-9. doi: 10.1007/s00402-007-0448-y. Epub 2007 Sep 9.
This study focused on the change in the range of motion (ROM) during the perioperative period, i.e., the preoperative and intraoperative ROM, and that on discharge, and compared the difference between posterior cruciate ligament-retaining (PCLR) and -sacrificing (PCLS) prostheses.
In this prospectively randomized study, we compared the changes in the ROM in PCLR (n = 50) and PCLS (n = 50) total knee arthroplasties.
The mean flexion in PCLR prostheses was 130.0 degrees preoperatively, 120.0 degrees intraoperatively, and 105.0 degrees at discharge, and 125.0 degrees , 120.0 degrees , and 100.0 degrees , respectively, in PCLS. The designs did not differ statistically in each period (P > 0.05). Both designs showed significant correlations between the preoperative and intraoperative ROM, and between the preoperative and discharge ROM. Only the PCLS showed a significant correlation between the intraoperative and discharge ROM, and a significant difference was observed in correlation of rank coefficient between the two prostheses (P < 0.001).
The PCLS design has an advantage in rehabilitation planning because of the predictable changes in the ROM during the perioperative period, although the acquired average ROM at discharge did not differ statistically.
本研究聚焦于围手术期（即术前、术中和出院时）的活动范围（ROM）变化，并比较了保留后交叉韧带（PCLR）和牺牲后交叉韧带（PCLS）假体之间的差异。
在这项前瞻性随机研究中，我们比较了PCLR（n = 50）和PCLS（n = 50）全膝关节置换术中ROM的变化。
PCLR假体术前平均屈曲角度为130.0度，术中为120.0度，出院时为105.0度；PCLS假体相应角度分别为125.0度、120.0度和100.0度。各阶段两种设计在统计学上无差异（P > 0.05）。两种设计在术前与术中ROM之间，以及术前与出院时ROM之间均显示出显著相关性。只有PCLS在术中与出院时ROM之间显示出显著相关性，且两种假体在等级系数相关性方面存在显著差异（P < 0.001）。
PCLS设计在康复计划方面具有优势，因为围手术期ROM变化具有可预测性，尽管出院时获得的平均ROM在统计学上无差异。
