48-year-old female s/p trauma to L knee with OA, persistent pain particularly with varus stress on medial side r/o cartilage/ligament injury. MENISCI: There is a branching high signal intensity in the body of the lateral meniscus, compatible with a complex tear. An additional complex tear of the body of the medial meniscus is seen extending into the posterior horn. Moderate extrusion of the medial meniscus is also noted.ARTICULAR CARTILAGE AND BONE: There is a focal area of cortical depression of the medial femoral condyle measuring approximately 8 mm in width with surrounding high T2 signal intensity, likely representing a subacute subchondral fracture with moderate associated marrow edema. Full thickness cartilage loss in the weight-bearing portion of the medial femoral condyle is also present. Diffuse chondral thinning is also seen in the articular surface of the lateral femoral condyle. Fissuring and approximately 50% chondral loss is seen in the medial patellar facet extending to the median ridge.LIGAMENTS: The anterior and posterior cruciate ligaments are intact. Components of the medial and lateral collateral ligaments are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Small insufficiency fracture of the medial femoral condyle.2.Complex medial and lateral meniscal tears, as above.