69-year-old female with pain and buckling. Evaluate for internal derangement. MENISCI: There is branching intermediate signal intensity within the anterior horn of the lateral meniscus extending to both the tibial and femoral articular surfaces indicating a complex tear with underlying meniscal degeneration. There is blunting of the free edge of the body of the meniscus likely representing extension of this tear. There is also increased signal intensity within the inner fibers of the posterior horn of the lateral meniscus, near its root, which may represent degeneration and free edge fraying/tearing. There is mild increased signal intensity within the medial meniscus suggesting intrasubstance degeneration, but we see no discrete tear.ARTICULAR CARTILAGE AND BONE: There is moderate to severe degeneration of the articular cartilage of the patellofemoral joint with areas along the patella completely devoid of articular cartilage and associated with degenerative subchondral signal abnormality. There is relatively mild cartilage degeneration affecting the tibiofemoral articulation. There is mild tricompartmental osteophyte formation.LIGAMENTS: The cruciate and collateral ligaments appear intact.EXTENSOR MECHANISM: The quadriceps and patellar tendons appear intact.ADDITIONAL
1. Complex tear of the lateral meniscus, predominantly involving the anterior horn.2. Osteoarthritis with cartilage degeneration most severely affecting the patella.3. Small joint effusion.4. Nonspecific edema within the soft tissues anterior to the patella.