69-year-old male with knee pain. Assess for lateral meniscus tear. Some sequences are limited by patient motion artifact.MENISCI: There is mild increased signal abnormality within the lateral meniscus indicating intrasubstance degeneration, but we see no discrete tear. There is also increased signal abnormality within the medial meniscus indicating intrasubstance degeneration of the medial meniscus. This signal extends in a linear fashion to the free edge of the posterior horn and may represent a degenerative horizontal tear but this is equivocal. We see no fluid signal intensity within the meniscus to confirm an unstable tear.ARTICULAR CARTILAGE AND BONE: There is severe degeneration of the articular cartilage of the patellofemoral joint with large portions of the medial facet of the patella and femoral trochlea devoid of articular cartilage with associated underlying degenerative subchondral signal abnormality. There is also near full-thickness to full-thickness degeneration of the articular cartilage along the inferior aspect of the femoral trochlea, centrally, with underlying subchondral cyst formation. There is also moderate articular cartilage degeneration affecting the medial tibiofemoral compartment with near full-thickness to full-thickness cartilage loss along the medial femoral condyle, particularly along its medial aspect, with underlying subchondral cyst formation. Beneath the posterior horn of the lateral meniscus there is near full-thickness to full-thickness cartilage degeneration. There is tricompartmental osteophyte formation.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. No evidence of lateral meniscus tear. Equivocal medial meniscal horizontal tear.2. Tricompartmental articular cartilage degeneration.3. Other findings as described above.