Treatment of hip subluxation in Dyggve-Melchior-Clausen syndrome.

We report a case of Dyggve-Melchior-Clausen syndrome, a skeletal dysplasia with short trunk dwarfism and mental retardation. A Chiari pelvic osteotomy was performed to halt hip subluxation on both sides. The patient was evaluated after 9 years and 10 months. The progressive lateral migration of the femoral head seemed to have been unaffected by this type of osteotomy.