Reason: eval MPFL, trochlear dysplasia, loose bodies, assess TT-TG History: Left patellar instability MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: The medial and lateral compartment articular cartilage appears intact. There is superficial fraying of the articular cartilage along the lateral facet of the femoral trochlea. There is partial-thickness articular cartilage degeneration along the lateral facet of the patella. No full-thickness articular cartilage defects are identified. There is increased signal abnormality within the lateral femoral condyle and medial aspect of the patella likely representing contusions from prior transient patellar dislocation. The femoral trochlea is shallow, superiorly, indicating a mild femoral trochlear dysplasia.LIGAMENTS: The cruciate and collateral ligaments appear intact. There is increased signal abnormality and subcutaneous edema about the mid substance fibers of the MPFL. The mid substance fibers of the MPFL are indistinct indicating a tear.EXTENSOR MECHANISM: The extensor mechanism appears intact. There is a small amount of fluid within the deep infrapatellar bursa.ADDITIONAL
1. Findings consistent with prior transient patellar dislocation including bone contusions and disruption of the medial patellofemoral ligament.2. Patella alta, mild femoral trochlear dysplasia, and borderline tibial tubercle to trochlear groove distance.3. Articular cartilage degeneration affecting the patellofemoral compartment as described above without evidence of a full-thickness articular cartilage defect.