Use of Corrective Ulnar Osteotomy and Radial Head Relocation Into Preserved Annular Ligament in the Treatment of Radiocapitellar Instability Secondary to Pediatric Chronic Monteggia Fracture-Dislocation.

Purpose: Opening-wedge osteotomy of the ulna restores normal ulnar length and corrects the angulation of the ulna in patients with chronic Monteggia fracture-dislocations. In addition, this eases the reduction of the radial head. Morbidity caused by annular ligament reconstruction surgery can be prevented by preserving the intact annular ligament.