Complications after intracapsular hip fractures in young adults. A meta-analysis of 18 published studies involving 564 fractures

18 studies were identified (564 fractures) that assessed the use of open versus closed reduction in young adults with sustained displaced and undisplaced intracapsular hip fractures. The results of the meta-analysis indicate that non-union and avascular necrosis occurred more frequently following displaced fractures than undisplaced fractures. Furthermore, the incidence of non-union was significantly higher after open reduction than closed reduction. There was no significant difference in avascular necrosis following open and closed reduction or in non-union and avascular necrosis following early or late surgery.