Long Beach, California.
Arthroscopy. 2021 Feb;37(2):598-599. doi: 10.1016/j.arthro.2020.10.011.
The false-positive finding of anterior horn meniscus (pseudo)tear on magnetic resonance imaging (MRI) is an important finding of which to be aware. We have recently seen awareness similarly raised regarding root tears of the meniscus, which, if overlooked, could have detrimental consequences. Manifestations of the MRI finding of meniscus pseudotear arise from the variability of the insertion of the transverse geniculate ligament into the anterior horn of the lateral meniscus. Bearing in mind that anterior knee pain is a common reason that patients present for an orthopaedic and sports medicine evaluation, the understanding that this MRI finding does not represent a true meniscus tear may save patients from unnecessary arthroscopic surgery.
磁共振成像(MRI)上前角半月板(假性)撕裂的假阳性发现是需要注意的一个重要发现。我们最近也注意到半月板根部撕裂的情况类似,如果忽视这些,可能会产生不利的后果。半月板假性撕裂 MRI 发现的表现源于横向膝状突韧带插入外侧半月板前角的插入方式的可变性。鉴于前膝疼痛是患者接受骨科和运动医学评估的常见原因,了解到这种 MRI 发现并不代表真正的半月板撕裂可能使患者免于不必要的关节镜手术。