Male, 58 years old. Pain. MENISCI: The medial and lateral menisci are intact, without evidence of tear. ARTICULAR CARTILAGE AND BONE: There is generalized thinning of the patellar cartilage. Focal irregularity along the medial patellar facet, compatible with partial-thickness tearing/defects.LIGAMENTS: The cruciate and collateral ligaments are unremarkable. The medial patellar retinaculum is not well seen and may be torn. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Joint effusion with possible associated inflammatory changes.2.Possible tear of the medial patellar retinaculum.