Lateral knee pain Note that the exam is significantly limited by motion artifact.MENISCI: There is maceration of the lateral meniscus with associated extrusion into the lateral gutter. The medial meniscus appears relatively intact. ARTICULAR CARTILAGE AND BONE: There is severe cartilage loss of the lateral compartment involving both the femoral condyle and tibial plateau. There is associated reactive marrow changes. Moderate thinning of the medial compartment is noted with severe loss of the patellofemoral compartment also present. Tricompartmental osteophytes are noted. Intraosseous ganglion is seen near the root of the medial meniscus and there are degenerative marrow changes of the tibiofibular articulation.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The quadriceps and patellar tendons are intact.ADDITIONAL
1. Maceration of the lateral meniscus.2. Severe cartilage of the knee most notably in the lateral compartment.3. Moderate size joint effusion.