Pain. Chondromalacia? Due to the patient's body habitus, the high-resolution knee coil could not be used. An alternative coil was used instead which results in slightly suboptimal image quality.MENISCI: The posterior horn and body of the medial meniscus are abnormally small. I do not know if this is a result of chronic attritional tearing or prior partial meniscectomy. There is intermediate signal intensity within the posterior horn and body of the medial meniscus that extends to the tibial articular surface. While this is compatible with an undersurface tear, it may simply represent residual degenerative signal within the meniscus following partial meniscectomy. I see no fluid signal intensity entering the meniscus; however, there are small para meniscal cysts along the posterior and medial margins of the meniscus. There is slight medial extrusion of the body of the medial meniscus. The anterior horn of the medial meniscus appears intact. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There are small tricompartmental osteophytes. Subjectively the articular cartilage of the tibiofemoral compartments appears slightly thinned, suggesting mild diffuse degeneration. There also appears to be focal full-thickness cartilage loss along the femoral trochlea centrally and along the medial facet with a small underlying subchondral cyst. This is new when compared with the prior study. The articular cartilage of the patella appears relatively intact. There is residual red marrow in the distal femur and proximal tibia, but otherwise bone marrow signal intensity is normal.LIGAMENTS: There is thickening of the anterior cruciate ligament likely representing mucoid degeneration. The posterior cruciate ligament appears intact. The medial collateral ligament and collateral collateral ligament complex appear intact. EXTENSOR MECHANISM: The extensor mechanism is intact. The femoral trochlea appears slightly shallow, perhaps represent a mild dysplasia, with slight lateral translation of the patella. The tibial tubercle to trochlear groove distance measures just over 2 cm.ADDITIONAL
1.Cartilage degeneration particularly affecting the femoral trochlea as described above.2.Medial meniscal abnormalities as described above may either reflect chronic attritional tearing, sequela of prior partial meniscectomy, or combination of both.3.Edema along tracking inferiorly along the medial head of gastrocnemius muscle suggests recent Baker's cyst rupture.4.Other findings as above.