Knee pain MENISCI: There is deformity of the posterior horn of the medial meniscus likely relating to an overlying osteochondral lesion however there is no discrete tear identified. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: An osteochondral lesion is seen involving the medial femoral condyle measuring 1.6 cm in both the AP and transverse dimensions. There is loss of the overlying articular cartilage with increased marrow signal within the femur suggesting some component of instability. The lateral compartment is normal. There is mild irregularity of the articular cartilage of the medial patellar facet without full-thickness defect. LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Osteochondral defect within the medial femoral condyle measuring approximately 1.6 cm. There is slightly increased marrow signal surrounding the lesion which may suggest a component of instability however there is no fluid signal undercutting the lesion and no evidence of detachment.