Posterolateral rotatory instability of the elbow.

Posterolateral rotatory instability of the elbow is often caused by a complex injury to the lateral ulnar collateral ligament complex. This often leads to chronic mechanical symptoms of instability and pain. Surgical repair or reconstruction of the ligament is often required to stabilize the radiocapitellar joint. Multiple techniques have been described in the literature for repair or reconstruction of the lateral ligamentous complex with overall good clinical outcomes.