Lesions of the posterolateral corner are usually posttraumatic in etiology. They are
most frequently associated with tear of the anterior cruciate ligament and/or posterior
cruciate ligament. When unrecognized, they may lead to short-term failure of cruciate
ligament reconstruction or long-term knee joint degeneration. Early detection of such
lesions, especially in the preoperative period, is important since more severe injuries
usually require dedicated early surgical management. The anatomy of the posterolateral
corner will be reviewed and the normal and abnormal imaging features on MRI and US
will be illustrated. The main clinical and surgical features will also be presented.
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© 2009 Published by Elsevier Inc.
