Lattanzio P J, Chess D G, MacDermid J C
Hand and Upper Limb Centre, St. Joseph's Hospital, London, Ontario, Canada.
J Arthroplasty. 1998 Aug;13(5):580-5. doi: 10.1016/s0883-5403(98)90059-6.
The primary purpose of the study was to examine the role of the posterior cruciate ligament (PCL) in knee-joint proprioception after total knee arthroplasty (TKA). Knee-joint proprioception was measured in 10 patients with nonsacrificed PCL TKAs and 10 with sacrificed PCL TKAs. Knee-joint proprioception was evaluated through reproduction of static knee angles using a Penny and Giles electrogoniometer. The primary variable was absolute angular error (AAE). AAE was defined as the absolute value of the difference between the test angle and the patient's perceived version of the test angle. Proprioception deficit was compared to the WOMAC questionnaire which evaluates pain, stiffness, and physical function of the lower extremity. No significant difference was found between the nonsacrificed PCL TKA (4.33 degrees +/- 1.52 degrees) and sacrificed PCL TKA (4.38 degrees +/- 1.39 degrees) AAE values (P > .4). Furthermore, no significant differences were observed in the WOMAC questionnaire scores for all three parameters between the two types of knee prosthesis (P > .35). The current findings suggest that the preservation of the PCL in TKA may not improve knee-joint proprioception and subsequently may not improve TKA functional performance.
该研究的主要目的是探讨后交叉韧带（PCL）在全膝关节置换术（TKA）后膝关节本体感觉中的作用。对10例保留PCL的TKA患者和10例牺牲PCL的TKA患者进行了膝关节本体感觉测量。使用Penny和Giles电子测角仪通过重现静态膝关节角度来评估膝关节本体感觉。主要变量是绝对角度误差（AAE）。AAE定义为测试角度与患者所感知的测试角度之间差值的绝对值。将本体感觉缺陷与评估下肢疼痛、僵硬和身体功能的WOMAC问卷进行比较。保留PCL的TKA组（4.33°±1.52°）和牺牲PCL的TKA组（4.38°±1.39°）的AAE值之间未发现显著差异（P>.4）。此外，两种类型膝关节假体在WOMAC问卷所有三个参数的评分上均未观察到显著差异（P>.35）。目前的研究结果表明，TKA中保留PCL可能不会改善膝关节本体感觉，进而可能不会改善TKA的功能表现。
