Preliminary results of early open reduction by an anterior approach for congenital dislocation of the hip.

Abstract

We report the results of 113 early open reductions of congenitally dislocated hips using a technique we have developed. Surgery is followed by functional postoperative treatment with a Pavlik harness or abduction splint. The age of the patients and the follow-up period ranged from 6 to 24 months and 2 to 12 years, respectively. Radiologic results corresponded to Severin grades I and II in 98%. Severe ischemic necrosis was not observed. Secondary surgery (femoral derotation osteotomy and/or Pemberton's operation) was performed in 21% of the cases. Reduction at a young age resulted in fewer secondary procedures. Good results were attributed to postoperative treatment: Abandoning rigid fixation prevented soft tissue stretching, which may endanger blood supply to the joint. This treatment ensures concentric reduction and allows early and spontaneous joint mobilization in a functional position. These factors stimulate further joint development.