Pinar H, Akseki D, Karaoğlan O, Ozkan M, Uluç E
Department of Orthopaedics and Traumatology, School of Medicine, Dokuz Eylül University, Izmir, Turkey.
Arthroscopy. 2000 Jan-Feb;16(1):96-101. doi: 10.1016/s0749-8063(00)90135-x.
This article adds 2 more cases of bilateral discoid medial menisci to the previously reported 9 cases. The radiographs of the first case revealed bilateral cupping of the medial tibial plateaus and a small lytic lesion of the left distal medial femoral metaphysis. Beside the posteriorly unstable incomplete type discoid medial meniscus, the left knee had several associated arthroscopic findings: depression of the medial tibial plateau with exposed subchondral bone, anomalous insertion of the anterior horn of the discoid meniscus to the anterior cruciate ligament, a pathological medial plica, and longitudinal deep fissures in the trochlea. The second case was a complete type with peripheral horizontal cleavage tears. Following arthroscopic surgery, magnetic resonance imaging (MRI) scans of the contralateral knees were obtained in both cases to search for bilaterality. MRI revealed discoid medial menisci in the unoperated knees as well. The short-term results of arthroscopic meniscectomy may not be as satisfactory as those reported for normal menisci.
本文在先前报道的9例双侧盘状内侧半月板病例基础上又增加了2例。第一例的X线片显示双侧胫骨内侧平台凹陷以及左侧股骨远端内侧干骺端有一小的溶骨性病变。除了后方不稳定的不完全型盘状内侧半月板外，左膝还有一些相关的关节镜检查发现：胫骨内侧平台凹陷伴软骨下骨外露、盘状半月板前角异常附着于前交叉韧带、病理性内侧皱襞以及滑车沟纵向深裂。第二例为完全型，伴有周边水平劈裂撕裂。关节镜手术后，两例均对侧膝关节进行了磁共振成像（MRI）扫描以查找双侧性。MRI显示未手术的膝关节也存在盘状内侧半月板。关节镜下半月板切除术的短期结果可能不如正常半月板报道的那样令人满意。
