61-year-old female with lateral joint line pain. Unable to flex without pain. Evaluate lateral meniscus. Due to patient's body habitus, the high-definition coil could not be utilized resulting in slightly suboptimal image quality.MENISCI: There is globular increased signal abnormality within the anterior horn of the lateral meniscus consistent with intrasubstance degeneration. Some of the signal extends to the femoral articular surface consistent with a complex tear. The posterior horn appears intact. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is a full articular cartilage degeneration along the anterior aspect of the lateral femoral condyle with underlying subchondral signal abnormality. There is full-thickness articular cartilage degeneration along the lateral facet of the patella with underlying degenerative subchondral signal abnormality. The femoral trochlea is shallow/flat, superiorly, and the medial facet appears disproportionately small relative to the lateral facet, indicating femoral trochlear dysplasia.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The Insall Salvati ratio is 1.2, suggestive of patella alta. The extensor mechanism appears intact.ADDITIONAL
1. Degeneration and complex tear of the lateral meniscus.2. Full-thickness articular cartilage degeneration most pronounced along the patellofemoral joint with findings consistent with femoral trochlear dysplasia.3. Small joint effusion.