Kim S J, Min B H, Han D Y
Department of Orthopaedic Surgery, Yonsei University, College of Medicine, Seoul, Korea.
Am J Sports Med. 1996 Jan-Feb;24(1):83-7. doi: 10.1177/036354659602400115.
We evaluated 200 patients who had a positive McMurray test and found atypical McMurray test results in 24 patients (12%). These patients revealed pain or clicking or both either in the medial compartment of the knee when the leg was internally rotated or in the lateral compartment of the knee when the leg was externally rotated. The authors analyzed these paradoxical findings at arthroscopic examination to identify the relationship between the type of meniscal tear and the direction of leg rotation that elicited the catching and displacement of the torn meniscal portion during the McMurray test. Contrary to conventional McMurray test findings, three different types of meniscal tears were found on the side of the knee where pain or a clicking sound occurred. The three types were 1) anteriorly based posterior oblique tears with anterior displacement of the meniscus, 2) bucket-handle tears in the posterior half of the menisci, and 3) peripheral detachment of discoid menisci in the posterior half of the torn portions.
我们评估了200例麦克马瑞试验呈阳性的患者，发现其中24例（12%）的麦克马瑞试验结果不典型。这些患者在小腿内旋时膝关节内侧间室出现疼痛或弹响，或两者皆有；或在小腿外旋时膝关节外侧间室出现疼痛或弹响，或两者皆有。作者在关节镜检查时分析了这些矛盾的发现，以确定半月板撕裂类型与小腿旋转方向之间的关系，小腿旋转方向会在麦克马瑞试验期间引起撕裂半月板部分的卡顿和移位。与传统的麦克马瑞试验结果相反，在出现疼痛或弹响的膝关节一侧发现了三种不同类型的半月板撕裂。这三种类型分别为：1）半月板前移位的前基底后斜形撕裂；2）半月板后半部的桶柄状撕裂；3）撕裂部分后半部盘状半月板的周边分离。
