Pain and locking. Check for internal derangement MENISCI: The lateral meniscus is unremarkable other than mild fraying of the inner edge. Otherwise the medial meniscus demonstrates a globular signal within the body extending into the posterior horn without a definite discrete linear component. These changes extend to the superior articular surface posteriorly.CARTILAGE AND BONE: Heterogeneous signal with mild irregularity involving tic the the trochlear groove and with diffuse thinning and cartilaginous loss in both medial and lateral compartments, greater medially. Underlying medial compartment contusion with changes involving the anterior femoral condyles and posterior tibial plateauu. Superimposed moderate osteoarthritic changesLIGAMENTS: Ligaments appear intact, specifically the ACL is well visualized.. EXTENSOR MECHANISM: No significant abnormality noted..ADDITIONAL
1. Medial meniscal changes, largely degenerative involving the body and posterior horn; see detail provided 2. Bone contusion involving medial compartment with extensive cartilaginous loss and degenerative changes, again greater in the medial aspects3. Small Baker cyst