Imaging of the anterior cruciate ligament

Figure 18 Posterolateral corner injury. A 25-year-old man suffered knee injury during a football match. A: Axial intermediate-weighted; B: Coronal T2-weighted fat suppression images of a patient with acute complete anterior cruciate ligament tear (white arrowhead). Oedema with thickening of the lateral collateral ligament and partial disruption of the fibres are present at the femoral origin (L). The posterior capsule and the oblique popliteal ligament (OPL) also show thickening and oedematous change. There is mild sprain of the femoral insertion of the popliteus tendon (P). The popliteofibular ligament is severely swollen and oedematous suggestive of high grade partial tear (curved black arrow).