40-year-old male with pain and history of previous meniscal repair. MENISCI: There is branching linear increased signal abnormality within the posterior horn of the medial meniscus which extends to the tibial and femoral articular surfaces, consistent with a complex tear with both a horizontal and longitudinal component. There are subcentimeter foci of fluid signal abnormality along the posterior horn of the meniscus consistent with parameniscal cyst formation. There is globular increased signal abnormality within the body of the meniscus consistent with intrasubstance degeneration. Some of this signal abnormality extends to the femoral articular surface suggesting fraying/degenerative tearing. No fluid-filled tear is identified. The anterior horn appears intact. The lateral meniscus appears intact. ARTICULAR CARTILAGE AND BONE: There is subjective thickening of the articular cartilage along the weightbearing surface of the lateral femoral condyle. There is partial-thickness articular cartilage degeneration along the weightbearing surface of the medial femoral condyle, above the posterior horn of the meniscus. There is fraying of the articular cartilage along the lateral facet of the patella. There is partial-thickness articular cartilage degeneration along the lateral facet of the patella.LIGAMENTS: The cruciate and collateral ligaments appear intact EXTENSOR MECHANISM: The extensor mechanism appears intact. There is enthesophyte formation along the inferior and lateral aspect of the patella. There is also associated increased signal abnormality within the lateral aspect of the proximal patellar tendon indicating mild patellar tendinosis.ADDITIONAL
1. Branching linear increased signal abnormality within the medial meniscus which extends to the tibial and femoral articular surfaces, consistent with a complex tear. It is uncertain if these findings represent a re-tear or prior tearing/postsurgical changes without the availability of prior examinations for comparison. No fluid-filled meniscal tear is evident. There are associated parameniscal cysts.2. Findings consistent with mild patellar tendinosis.