Reason: eval for meniscal pathology History: knee locking, lateral joint pain, hx of discoid meniscus and sx on R MENISCI: The medial meniscus appears intact. The lateral meniscus appears enlarged overall, which may represent a discoid meniscus. There is a bucket-handle tear of the lateral meniscus with a displaced fragment within the intercondylar notch (image 15; series 8). There is also increased signal abnormality within the posterior horn and body of the lateral meniscus which may reflect intrasubstance degeneration.ARTICULAR CARTILAGE AND BONE: There is focal full-thickness articular cartilage degeneration along the anterior aspect of the weightbearing surface of the medial femoral condyle above the anterior horn of the medial meniscus. There is decreased subchondral signal abnormality in the surrounding area which may represent sclerosis from prior impaction injury. There is relative sparing of the patellofemoral articular cartilage. There are tricompartmental osteophytes.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intactADDITIONAL
1. Bucket-handle tear of a probable discoid lateral meniscus. 2. Focal full-thickness articular cartilage degeneration along the medial femoral condyle as described above.3. Small to moderate size joint effusion.