Pain in right knee. Evaluate for meniscal injury. Motor vehicle accident 11/3/2015. Limited range of motion with flexion. MENISCI: No significant abnormality noted.ARTICULAR CARTILAGE AND BONE: Degenerative changes of the articular cartilage of the patella along the medial facet and eminence, with near-full-thickness to full-thickness fissuring. A tiny full-thickness defect of the articular cartilage of the medial facet of the femoral trochlea is identified. Mild bone marrow edema is identified at the medial aspect of the medial femoral condyle.LIGAMENTS: There is a tear of the proximal fibers of the anterior cruciate ligament. Interestingly, we do not see the typical accompanying bone contusion pattern. Proximal fibers of the superficial band of the medial collateral ligament are indistinct with adjacent edema, indicating a high-grade partial thickness tear. There is bandlike low signal posterior to the proximal fibers of the medial collateral ligament, likely representing the posterior oblique ligament, which also appears thickened and poorly defined, suggesting at least a partial tear.EXTENSOR MECHANISM: The extensor mechanism is intact, without significant abnormality.ADDITIONAL
1. Anterior cruciate ligament tear, which may be acute, although lack of the typical associated bone contusion pattern raises the possibly of a subacute injury.2. High-grade partial-thickness tear of the superficial band of the medial collateral ligament at its femoral attachment and probable tear of the posterior oblique ligament and medial retinaculum.3. Patellofemoral cartilage degeneration as described above.