Congenital Deficiency of Distal Ulna and Dislocation of the Radial Head Treated by Single Bone Forearm Procedure

Abstract

Congenital deficiency of part of distal ulna affecting the distal radio-ulnar joint is a rare disorder. It is even rarer to find the association of proximal radio-ulnar joint dislocation along with distal ulnar deficiency. This type of congenital forearm anomaly is difficult to treat. Conversion to a single bone forearm in the expense of pronation-supination movement is a viable option. By doing so the elbow and wrist can be stabilized; however movement is possible in only one plane. We are describing here a girl of 8 years having proximal radio-ulnar joint dislocation along with deficiency of distal ulna treated by converting into a single bone forearm.

Double ulnar osteomy for the treatment of congenital radial head dislocation

“…For example, Yamazaki et al used the open reduction and ulnar osteotomy for a five-year boy with CRHD in 2007, which demonstrated that the boy obtained significant improvement in elbow motion and had no pain, no osteoarthritic changes at 10 years follow-up 4 . Subsequently, the single bone forearm procedure, single osteotomy, derotation osteotomy are applied to CRHD, which corrects the elbow flexion and motion 6, 7, 8. However, these surgery methods involve complications (infection, hematoma, and thrombosis, etc.)…”