Left knee pain MENISCI: No significant abnormality noted.ARTICULAR CARTILAGE AND BONE: There is a 1.4 cm full-thickness articular cartilage defect of the lateral femoral trochlea anteriorly with additional areas of near full-thickness loss and associated underlying subchondral marrow edema. The articular cartilage of the patella demonstrates areas of heterogeneity but no full-thickness loss. The articular cartilage of the weightbearing portions of the lateral compartment appears spared as does the articular cartilage of the medial compartment. LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Full-thickness articular cartilage defect of the lateral femoral trochlea with additional areas of near full-thickness loss and associated marrow edema.2. Possible mild strain of the semimembranosus.3. Intact medial and lateral menisci.