The acute bipolar radial head replacement for isolated unreconstructable fractures of the radial head.

For the acute treatment of radial head fractures, radial head arthroplasty can be considered if open reduction and internal fixation is not technically possible and if simple radial head resection is contraindicated. We report our experience with a bipolar Judet radial head prosthesis. After a mean follow-up of 41.7 months, 16 patients were assessed following radial head replacement. The outcome was assessed clinically, functionally, and radiographically. Outcome was satisfactory in 87.5% of cases. The mean post-operative ranges of motion were greater than the functional arcs both in flexion-extension and in pronation-supination, and the results did not appear to be influenced in a significant way by the type of original lesion. All elbows were stable. The main complication was the development of heterotopic ossifications. Bipolar radial head prosthesis represents a suitable option for acute treatment of unreconstructable radial head fractures, either isolated or associated with elbow dislocation and in the absence of other bony lesions.