Reason: pain and swelling History: pain \T\ swelling. MENISCI: Lateral and medial menisci are intact.ARTICULAR CARTILAGE AND BONE: Previously seen likely full-thickness articular cartilage defect at the posterior weightbearing surface of the lateral femoral condyle is no longer visualized. Previously seen far anterior lateral tibial plateau focal full thickness cartilage degeneration with underlying bone marrow edema is no longer visualized. New partial-thickness defect of the articular cartilage of the lateral tibial plateau with underlying bone marrow edema measures approximately 8 mm in AP dimension.Medial tibiofemoral articular cartilage is intact.There is thinning of the articular cartilage of the medial trochlea. There is a focal full-thickness defect of the articular cartilage of the medial facet of the patella. Otherwise, the articular cartilage of the patellofemoral compartment is intact.Small bone island is again noted within the posterior medial tibial metaphysis.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Left knee:1.New full-thickness defect involving the lateral tibial plateau with underlying bone marrow edema. New focal full-thickness defect of the medial facet of the patella.2.Moderate joint effusion.3.Interval resolution of lateral femoral condyle articular cartilage defect and suspected chondral loose body.Right knee: Lateral femoral condyle. 1.Full-thickness defect involving the central trochlea with underlying bone marrow edema. Partial-thickness articular cartilage defect involving the lateral femoral condyle.2.Small joint effusion.3.Nonspecific edema within Hoffa's fat pad.4.Small Baker's cyst.