Right knee pain MENISCI: There is extensive degeneration and tearing of the lateral meniscus. In particular, the posterior aspect of the lateral meniscal body and lateral aspect of the posterior meniscal horn are not visualized, presumably reflecting near complete maceration of the meniscus. There is additional globular signal abnormality within the anterior and posterior horns of the remainder of the meniscus indicating intrasubstance degeneration. In the posterior horn this signal abnormality extends to the tibial articular surface representing additional undersurface tearing.There is globular intrasubstance signal within the posterior horn of the medial meniscus indicating mucoid degeneration. This appears to extend to the femoral articular surface on both coronal and sagittal sequences, compatible with degenerative tearing; it may also extend to the tibial articular surface, but this is equivocal. Additional degenerative tearing extends through the root of the posterior horn of medial meniscus, which decompress into a small multilobulated para-meniscal cyst. Signal abnormality also extends through the peripheral fibers of the posteromedial aspect of the meniscus to form a tiny para-meniscal cyst. ARTICULAR CARTILAGE AND BONE: There is full-thickness degeneration of the articular cartilage along the lateral tibial plateau with cyst formation and degenerative signal abnormality in the underlying bone. Additional near full-thickness cartilage loss is noted along the lateral tibial plateau. There is also thinning of the articular cartilage of the lateral femoral condyle above the posterior horn of the lateral meniscus with additional fissuring and degeneration of the articular cartilage more posteriorly. There is perhaps mild subjective thinning of the articular cartilage of the medial tibiofemoral compartment, but I see no discrete fluid-filled cartilage defect. A small subchondral cyst is seen anteriorly within the medial tibial plateau. There is a full-thickness cartilage fissure along the medial facet of the patella, as well as a small focus of degenerative signal abnormality in the subchondral marrow. Increased signal intensity within the articular cartilage of the femoral trochlea centrally and superiorly may reflect focal degeneration, and more inferiorly the articular cartilage of the femoral trochlea appears slightly thinned. There are tricompartment osteophytes.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Extensive degeneration and tearing of the lateral meniscus as described above. There is also degenerative tearing of the posterior horn of the medial meniscus.2.Cartilage degeneration and osteoarthritic changes as described above most severely affecting the lateral tibial plateau.