Male 45 years old with medial knee pain, rule out meniscal or chondral pathology. MENISCI: The menisci are intact.ARTICULAR CARTILAGE AND BONE: There is irregularity and thinning of the articular cartilage over the patellar eminence and irregularity and near full-thickness cartilage loss over the medial patellar facet. There is full-thickness fissuring in the trochlear groove and along the medial trochlear facet. In the medial compartment there is near full-thickness cartilage loss over the weightbearing surface of the femoral condyle and tibial plateau with underlying marrow edema. In addition, there is a 7 mm full-thickness cartilage defect along the posterior medial femoral condyle. The articular cartilage of the weightbearing surfaces of the lateral compartment is intact however there is an approximately 1.2 cm full-thickness cartilage defect along the posterior lateral femoral condyle.A subchondral cyst in the anterior mid tibial plateau is also likely degenerative. There are tricompartmental osteophytes.LIGAMENTS: The cruciate and collateral ligaments are intact EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.The menisci are intact.2.Tricompartmental osteoarthritis and full thickness cartilage loss as described above.3.Moderate effusion and Baker's cyst.