Department of Orthopedic Surgery, Iwate Medical University, 2-1-1, Idaidori, Yahaba, Iwate, Japan.
Department of Anatomy, Iwate Medical University, 2-1-1, Idaidori, Yahaba, Iwate, Japan.
Knee Surg Sports Traumatol Arthrosc. 2020 Nov;28(11):3450-3456. doi: 10.1007/s00167-020-06095-1. Epub 2020 Jun 20.
To clarify the characteristic features of the meniscal root attachments, meniscofemoral ligaments (MFLs), and related osseous landmarks on three-dimensional images using computed tomography.
Twenty-eight non-paired, formalin-fixed human cadaveric knees were evaluated in this study. The meniscal root attachments were identified and marked. Three-dimensional images were obtained after applying a contrast agent to the entire meniscal surfaces and MFLs, then the morphology of the meniscal root attachments and MFLs, and their positional relationships with osseous landmarks, were analyzed.
Parsons' knob divided the medial meniscal anterior root attachment and lateral meniscal anterior root attachment on the anterior portion of the tibial plateau. The medial meniscal posterior root attachment was near the medial intercondylar tubercle. The lateral meniscal posterior root attachment (LMPRA) was closer to the lateral intercondylar tubercle. Both root attachments were near the posterior intercondylar fossa. The positional relationships between the meniscal root attachments and related osseous landmarks were consistent in all specimens. The MFLs originated from the lateral meniscus posterior horn, and the anterior MFL was closer to the LMPRA than the posterior MFL. The posterior MFL originated at approximately the midpoint between the LMPRA and the most posterior margin of the lateral meniscus.
This study showed that the relationships between the characteristic features of the meniscal root attachments, MFLs, and related osseous landmarks were consistent. The clinical relevance of this study is that it improved understanding of the anatomy of the meniscal root attachments and MFLs.
利用计算机断层扫描（CT）在三维图像上阐明半月板根部附着、半月板股骨韧带（MFL）和相关骨性标志的特征。
本研究评估了 28 个非配对的福尔马林固定的人体尸体膝关节。确定并标记半月板根部附着处。在整个半月板表面和 MFL 上应用造影剂后获得三维图像，然后分析半月板根部附着处和 MFL 的形态及其与骨性标志的位置关系。
Parsons 结节将内侧半月板前角附着处和外侧半月板前角附着处分为胫骨平台的前部分。内侧半月板后角附着处靠近内侧髁间嵴。外侧半月板后角附着处（LMPRA）更靠近外侧髁间嵴。两个根部附着处都靠近后交叉髁间窝。所有标本中半月板根部附着处与相关骨性标志的位置关系一致。MFL 起源于外侧半月板后角，前 MFL 比后 MFL 更靠近 LMPRA。后 MFL 起源于 LMPRA 和外侧半月板后缘之间的大约中点。
本研究表明半月板根部附着处、MFL 和相关骨性标志的特征之间存在一致的关系。本研究的临床意义在于它提高了对半月板根部附着处和 MFL 解剖结构的理解。
