Persistent right knee pain s/p injury 6 wks ago MENISCI: There is intrasubstance degeneration of the medial meniscus without acute tear. The lateral meniscus is within normal limits.ARTICULAR CARTILAGE AND BONE: There is grade 1-2 chondral thinning in the medial tibiofemoral compartment. The lateral tibiofemoral compartments within normal limits. There is grade 2/3 chondral thinning in the patellofemoral compartment, particularly along the medial patellar facet and lateral femoral condyle. There is focal underlying edema at the patellar apex, likely degenerative.LIGAMENTS: The anterior and posterior cruciate ligaments are intact. The lateral collateral ligament complex is intact. There is mild T2 hyperintensity along the medial collateral ligament, suggesting grade 1 sprain. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Grade 1 sprain of the medial collateral ligament.2.Small joint effusion.3.Atypical Baker's cyst.4.Scattered mild chondral thinning, as above.