Pelvic displacement osteotomy for chronic hip dislocation in myelodysplasia.

Twelve children with lumbar-level myelodysplasia (average age, eight and three-quarter years) underwent twenty-one pelvic displacement osteotomies for subluxated or dislocated hips. Nineteen of the twenty-one hips remained reduced on three-year follow-up. Gains in gait pattern, ease of bracing, and reduced pelvic obliquity were noted. Active function about the hips was not improved, nor was there a decrease in the amount of bracing needed following the osteotomy. Pelvic displacement osteotomy can be utilized in selected cases as part of the over-all management of chronic hip dislocation in myelodysplasia.