Reason: left knee medial meniscus tear History: left knee pain MENISCI: There is blunting and deformity of the posterior horn of the medial meniscus indicating a complex tear with a large horizontal component which extends to the body of the meniscus. There is globular increased signal abnormality within the body of the lateral meniscus indicating intrasubstance degeneration. Some of the signal extends to the tibial articular surface of the free edge of the meniscus indicating degenerative tearing, involving the body of the meniscus. ARTICULAR CARTILAGE AND BONE: There is full-thickness articular cartilage degeneration along the weightbearing portion of the medial tibiofemoral compartment with underlying degenerative subchondral signal abnormality. There is subjective thinning of the articular cartilage of the lateral tibiofemoral compartment. There is a full-thickness articular cartilage defect along the lateral facet of the patella. There is a full-thickness articular cartilage defect along the median eminence of the patella and medial facet of the patella, centrally. There is superficial fraying of the articular cartilage of the femoral trochlea. There are tricompartmental osteophytes.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Tearing of the medial meniscus as described above. Degeneration/degenerative tearing of the lateral meniscus.2. Osteoarthritis of the left knee with full-thickness articular cartilage degeneration/defects as described above.3. Small joint effusion. 4. Borderline tibial tubercle to trochlear groove distance. Other findings as described above.