33-year-old male status post osteotomy as a child for Blount's disease. Evaluate left knee for ligament integrity and meniscal pathology. MENISCI: Note is made of linear increased signal abnormality traversing the posterior horn of the medial meniscus which extends to the femoral and tibial articular surfaces consistent with a vertical tear. There is deformity of the posterior horn extending into the body of the medial meniscus. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is articular cartilage degeneration along the lateral facet of the patella. Note is made of deformity of the medial aspect of the proximal tibia consistent with the patient's history of Blount's disease, status post osteotomy. No bone marrow signal abnormality is identified.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
Vertical tear of the posterior horn of the medial meniscus with parameniscal cyst formation as described above.