BACKGROUND Meniscal ramp lesions have been defined as longitudinal vertical peripheral tears of the medial meniscus involving the posterior meniscocapsular ligament, meniscotibial ligament, and/or the red-red zone of the posterior horn. They are heavily associated with anterior cruciate ligament injuries, and because of their potentially important biomechanical role in knee stabilization, injuries to this region may require surgical repair. However, due to their location and lack of general knowledge regarding their different types and associated appearances on magnetic resonance imaging, ramp lesions are routinely underreported. This is compounded by the fact that ramp lesions are also often overlooked during conventional anterior portal arthroscopy when direct visualization is not achieved. PURPOSE To demonstrate MRI appearances and arthroscopic findings of the different types of meniscal ramp lesions, in the hopes of improving their detection on pre-operative imaging.

中文翻译：

---

MRI表现为不同的半月板斜坡病变类型，与临床和关节镜检查相关。

背景技术半月板斜面病变已被定义为涉及半月板膜的韧带，后半月膜韧带和/或后角的红红色区域的内侧半月板的纵向垂直周边撕裂。它们与前交叉韧带损伤密切相关，由于它们在稳定膝关节方面可能具有重要的生物力学作用，因此对该区域的损伤可能需要进行手术修复。然而，由于它们的位置以及关于它们的不同类型和在磁共振成像上的相关外观的一般知识的缺乏，斜坡病变通常被低估。由于没有实现直接可视化，在常规的前门静脉镜检查期间通常也忽略了斜道病变，这一事实使情况更加复杂。