Reason: eval for tibial tubercle fx vs ocd History: knee pain for 1.5 years worse with sports; intermittent swelling MENISCI: The medial and lateral menisci are normal.ARTICULAR CARTILAGE AND BONE: There is a focal T1 signal hypointensity in the posterior aspect of the medial femoral condyle which measures 6 x 6 x 14 mm, which is compatible with an osteochondral defect. There is no surrounding bone marrow edema, suggesting this injury is likely chronic. The overlying articular cartilage is mildly thinned. The articular cartilage elsewhere in the knee is normal.LIGAMENTS: The anterior and posterior cruciate ligaments are intact. The medial collateral ligament and lateral collateral ligament complex are intact. EXTENSOR MECHANISM: The extensor mechanism is normal.ADDITIONAL
Grade IIB osteochondral defect along the posterior aspect of the medial femoral condyle. There is no associated bone or soft tissue edema, indicating the lesion is chronic.