Typically, this injury occurs to toddlers and preschoolers when a caregiver pulls the child’s arm and partially dislocates the elbow. Specifically, the ligament around the head of the radius bone slips off. A doctor that knows this easily relocates the ligament by internally and externally rotating the forearm. Sometimes sending the child for an X-ray relocates the ligament as the technologist places the child’s arm in position for the film. Either way, there is no pain in the relocation process and the child moves the arm immediately after relocation.
Dr Lewis Maharam