Mri finding: advanced osteoarthritic changes of knee joint with femoral condyles , medial tibial plateu , inter condylar notch and tibial spine osteochondral ulcersThe acl could not be seen near its femoral attachment while the rest of its fibers are seen sagging on the tibial surface with intra substance areas of high signal intensity in all pulse sequences.The posterior horn of the medial meniscus and lateral are degenerated.Degenerative tear of the anterior horn and body of medial meniscus.Medial collateral ligament sprain.Normal MRI appearance of the lateral meniscus, pcl , collateral and patellar retinacular ligaments as well as the quadriceps and infra patellar tendons.Mild intra articular joint effusion is noted.Intact peri-articular musculature with preserved intervening fat planes.