Reason: Patellar Tendonitis / Tear History: Pain, Weakness MENISCI: There is a small focus of increased signal intensity within the periphery of the posterior horn of the medial meniscus extending to the tibial articular surface compatible with a tear, although we cannot determine if this is acute or chronic on the basis of this single study. There is mild deformity of the periphery of the posterior horn of the medial meniscus which may likewise represent an old tear. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is increased signal intensity within the articular cartilage along the medial facet and median eminence of the patella with focal near full-thickness to full-thickness articular cartilage defects as well as surface delamination. There is also a high signal intensity cleft centrally within the femoral trochlea indicating a focal defect. The tibiofemoral articular cartilage appears intact. There are small tricompartmental osteophytes. The bone marrow signal intensity is otherwise normal.LIGAMENTS: The patient has undergone ACL reconstruction. The graft appears intact. The PCL appears intact. The MCL and LCL appear intact.EXTENSOR MECHANISM: There is thickening of the proximal patellar tendon, particularly laterally, with fluid signal intensity within its lateral fibers at its insertion on the patella indicating a partial thickness undersurface tear. The quadriceps tendon appears intact.ADDITIONAL
1. Proximal patellar tendinosis and partial-thickness tearing as described above.2. Intact anterior cruciate ligament reconstruction.3. Degeneration of the articular cartilage of the patellofemoral joint as described above.4. Medial meniscus tear as described above that may be chronic and perhaps healed.