Introduction: The purpose of this study was to determine whether associated nonunion of ulnar styloid fracture following plate-and-screw fixation of a distal radius fracture (DRF) has any effect on wrist functional outcomes, ulnar-sided wrist pain or distal radioulnar joint (DRUJ) instability.
Materials And Methods: A total of 91 consecutive patients with a DRF and an accompanying ulnar styloid fracture treated by open reduction and volar locking plate fixation were included in this study. In the first part of the analysis, the 91 study subjects were subdivided according to the presence or not of ulnar styloid union (20 and 71, respectively) by radiography at final follow-up (average 23 months).