Understanding the recurrent pulled elbow

Abstract

Nursemaid elbow is subluxation of the radius head seen in early childhood. The aim of this study was to examine the epidemiology of recurrent dislocations and the effect of hyperlaxity and bone anatomy on recurrent dislocations in these injuries, for which the pathogenesis has not been fully clarified. The study included a total of 329 paediatric patients who presented at the Paediatric Emergency Department (ED) between January 2016 and December 2022, and were diagnosed with Nursemaid Elbow. On presentation at ED, two-directional elbow radiographs were taken of all the patients and the radius head-neck ratio was measured on the lateral elbow radiograph. The Beighton score of joint hyperlaxity was evaluated in all the patients with a history of recurrent dislocation. A statistically significant difference was determined between the Beighton score groups in respect of the number of dislocations in multiple dislocations (P = 0.002). No statistically significant relationship was determined between the number of dislocations and the lateral radius head/neck ratio (P = 0.061). Hyperlaxity syndrome should be kept in mind in the aetiology of multiple dislocations.