Ozcanli Haluk, Keles Nigar, Gocmen-Mas Nüket, Ozenci Alpay Merter, Aydin Ahmet Turan
Faculty of Medicine, Department of Orthopedics, Akdeniz University, 07070, Antalya, Turkey.
Surg Radiol Anat. 2011 Oct;33(8):673-8. doi: 10.1007/s00276-011-0803-0. Epub 2011 Mar 15.
Discoid lateral meniscus is a rare disorder and its association with other variations in the knee joint has been reported. The anterior intermeniscal ligament has also been described as connecting the anterior convex margin of the lateral meniscus to the anterior horn of the medial meniscus. In the normal population, it was observed at 53-94%. Although the functional properties of the anterior intermeniscal ligament are not yet clarified, two distinct types of the ligament have been described according to their morphological characteristics as cord-like and membranous types. The purpose of this study was to evaluate any possible association between morphologic types of anterior intermeniscal ligament and discoid lateral meniscus. A retrospective study was designed; 20 discoid lateral menisci were operated using routine arthroscopic examination. Upon arthroscopic examination the thickness of the ligament and associated morphological changes were recorded systematically. The cord-like anterior intermeniscal ligament was an associated structure in 15 of the 20 knees with discoid lateral meniscus (75%). Patients with discoid lateral meniscus apparently have cord-like type anterior intermeniscal ligament, thus we conclude that cord-like type of anterior intermeniscal ligament is a frequent accompanying structure to discoid lateral meniscus and may have a potential stabilizing effect on its anterior stability.
盘状外侧半月板是一种罕见的疾病，并且其与膝关节其他变异的关联已有报道。半月板间前韧带也被描述为连接外侧半月板的前凸缘与内侧半月板的前角。在正常人群中，其观察到的比例为53% - 94%。尽管半月板间前韧带的功能特性尚未阐明，但根据其形态特征已描述了两种不同类型的韧带，即索状和膜状类型。本研究的目的是评估半月板间前韧带的形态类型与盘状外侧半月板之间的任何可能关联。设计了一项回顾性研究；使用常规关节镜检查对20例盘状外侧半月板进行手术。在关节镜检查时，系统记录韧带的厚度及相关形态学变化。在20例患有盘状外侧半月板的膝关节中，有15例（75%）的索状半月板间前韧带是相关结构。患有盘状外侧半月板的患者显然具有索状类型的半月板间前韧带，因此我们得出结论，索状类型的半月板间前韧带是盘状外侧半月板常见的伴随结构，并且可能对其前稳定性具有潜在的稳定作用。
