Left knee pain MENISCI: The lateral meniscus is intact. There is branching signal abnormality within the posterior horn and body of the medial meniscus with extension to the tibial articular surface indicating a complex tear. The anterior horn is intact.ARTICULAR CARTILAGE AND BONE: The full-thickness articular cartilage defect along the weightbearing portion of the medial femoral condyle is no longer seen, perhaps secondary to interval microfracture surgery. There is mild thickening and heterogeneity of the articular cartilage in this location with a focus of abnormal subchondral signal intensity that could represent a degenerative cyst or the sequela of prior microfracture. There is also a focal bony protuberance extending into the articular cartilage at this location which is new from the prior exam, perhaps due to prior microfracture. A second bony protuberance is noted along the femoral trochlea centrally, perhaps representing an additional site of microfracture. There is a small near full-thickness to full-thickness cleft just above this bony protuberance. There is mild degeneration of the articular cartilage of the patella, particularly of the medial facet, with a small focus of underlying degenerative subchondral signal abnormality.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Due to technologist error, the right knee was incorrectly imaged. The patient will not be charged for the exam and will be recalled for appropriate imaging of the left knee.2. Medial meniscal tear with findings suggestive of prior microfracture surgery as described above.