Comparison between radial head replacement and open reduction and internal fixation in clinical treatment of unstable, multi-fragmented radial head fractures

The objective of this study was to compare replacement of the radial head by metal prostheses with open reduction and internal fixation (ORIF) for the treatment of unstable, multi-fragmented radial head fractures. A prospective randomised controlled trial was employed to investigate 45 patients with unstable, multi-fragmented fractures of the radial head, from January 2004 to June 2007. The patients were randomised to two groups: the ORIF group and the radial head replacement group. Over the next two years, follow-up assessments recorded Broberg and Morrey scores and postoperative complication rate. Statistical analysis was performed. According to Broberg and Morrey scores, patients receiving radial head replacement achieved significantly better clinical results with 91% (20/22) good or excellent compared to patients assigned to the ORIF group with 65.2% (15/23) good or excellent results (P < 0.01). Postoperative complication rate of the radial head replacement group (13.6%) was significantly lower than that of the ORIF group (47.9%; P < 0.01). Compared with open reduction and internal fixation, radial head replacement with a metal prostheses resulted in favourable joint function for the unstable, multi-fragmented fractures of the radial head.