半月板囊肿的磁共振成像：采用三层方法评估其位置和范围
MR imaging of meniscal cysts: evaluation of location and extension using a three-layer approach.
作者信息
De Maeseneer M, Shahabpour M, Vanderdood K, Machiels F, De Ridder F, Osteaux M
机构信息
Department of Radiology, Vrije Universiteit Brussel, Brussels, Belgium.
出版信息
Eur J Radiol. 2001 Aug;39(2):117-24. doi: 10.1016/s0720-048x(00)00309-0.
PURPOSE
To analyze the extension of medial and lateral meniscal cysts relative to the capuloligamentous planes of the knee.
MATERIALS AND METHODS
The MR images of 32 patients with meniscal cysts were reviewed. The location and extension of the meniscal cysts with reference to the capsule and ligaments were recorded.
RESULTS
Most medial meniscal cysts were located posteromedially. Posteromedial meniscal cysts usually penetrated the capsule and were located between layer I and the fused layers II+III. From this site some extended anteriorly and then became located superficial to the superficial MCL. The location of lateral meniscal cysts was more varied. Anteriorly the cysts were located deep to the iliotibial band, whereas posterolateral cysts were located deep to the lateral collateral ligament.
CONCLUSION
Although the site of capsular penetration of meniscal cysts is determined by the location of meniscal tears, the possible pathways of extension appear to be determined by the capsuloligamentous planes of the knee.
目的
分析内侧和外侧半月板囊肿相对于膝关节囊韧带平面的延伸情况。
材料与方法
回顾了32例半月板囊肿患者的磁共振成像（MR）图像。记录半月板囊肿相对于关节囊和韧带的位置及延伸情况。
结果
大多数内侧半月板囊肿位于后内侧。后内侧半月板囊肿通常穿透关节囊，位于I层与融合的II + III层之间。从这个位置，一些囊肿向前延伸，然后位于浅层内侧副韧带（MCL）的表面。外侧半月板囊肿的位置更多样化。前部囊肿位于髂胫束的深层，而后外侧囊肿位于外侧副韧带的深层。
结论
虽然半月板囊肿的关节囊穿透部位由半月板撕裂的位置决定，但可能的延伸途径似乎由膝关节的囊韧带平面决定。
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