Female 59 years old Reason: evaluate for meniscus tear History: reports catching and instability. MENISCI: There is marked loss of the posterior horn of the medial meniscus with a small fragment seen compatible with a complete tear of the meniscus. The anterior horn of the medial meniscus appears intact. There is marked loss of the posterior horn of the lateral meniscus with complete tearing and degeneration, only a small residual fragment is seen. The anterior horn of the medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is an approximately 1.5 cm defect of the articular cartilage of the lateral femoral condyle with associated bone marrow edema. The articular cartilage of the medial femoral condyle is intact. Evaluation of the patella and femoral articular cartilage shows marked loss of the cartilage along the lateral facet with an underlying subchondral cyst. There is markedly thin articular cartilage along the medial facet. The proximal tibial articular cartilage is intact.LIGAMENTS: The cruciate and collateral ligaments appear intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Complete tears of the medial and lateral menisci as described above.2.Osteoarthritic changes of the knee with osteophyte formation and degenerative changes in the articular cartilage as described above.