Reason: cause of 10/10 pain on knee flexion US negative for blood, has MS (not the cause) on coumadin History: ib id MENISCI: Lateral meniscus is intact. There is absence of a large portion of the body and anterior horn of medial meniscus. The medial meniscus is extruded medially into the lateral recess. There is also a possible additional tear at the medial meniscal root.ARTICULAR CARTILAGE AND BONE: There are large areas of full-thickness cartilage loss involving nearly the entire medial femoral condyle measuring at least 3 cm and medial tibial plateau. There is diffuse thinning in the lateral compartmentwithout a fluid-filled defect present. Patellar and trochlear cartilage is intact. Moderate tricompartmental osteophytes are present. There are scattered foci of increased T2 signal along the tibial plateau which likely represent reactive edema.LIGAMENTS: The lateral collateral ligament complex is intact. The medial collateral ligament is intact. There is a tear of the ACL. The PCL is increased T2 signal which may reflect tendinopathy.EXTENSOR MECHANISM: Extensor mechanism is intactADDITIONAL
1.ACL rupture.2.Absence of large portion of the medial meniscal body and anterior horn may reflect either prior partial meniscectomy or degenerative tearing.3.Severe full-thickness articular cartilage loss in the medial compartment.4.Multilobulated Baker's cyst.