The role of the radial collateral ligament of the elbow is to provide stability against inner-to-outer stress on the elbow. Usually injury of the lateral collateral ligament complex of the elbow results from varus trauma with fractures or subluxations of the elbow joint. Periarticular calcifications are common after elbow trauma, particularly as a result of ligament injuries 1. The heterotopic ossifications indicate failed healing of a lateral collateral ligament complex avulsion 2.
Courtesy: TSRM Nunzio Bianco (imaging technologist)