75-year-old male with knee pain and instability MENISCI: There is globular and linear signal abnormality within the lateral meniscus extending to both the tibial and femoral articular surfaces indicating extensive complex tearing. There is mild globular intrasubstance signal abnormality within the medial meniscus, but no discrete tear.ARTICULAR CARTILAGE AND BONE: There is severe degeneration of the articular cartilage of the lateral joint compartment with full thickness degeneration along the lateral tibial plateau and femoral condyle posteriorly. Mild degenerative signal abnormality is present within the underlying subchondral bone. There is near full thickness degeneration of the articular cartilage along the medial femoral condyle anterior to the posterior horn of the meniscus. Mild degeneration of the articular cartilage of the femoral trochlea and lateral patellar facet is also noted. Tricompartmental osteophytes are also identified.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The quadriceps and patellar tendons are intact.ADDITIONAL
1. Osteoarthritis and extensive tearing of the lateral meniscus, as described above.2. Moderate joint effusion.