Risk factors for acetabular retroversion in developmental dysplasia of the hip: does the Pemberton osteotomy contribute?

AR was present in 37.5 % of the hips in the Pemberton group after skeletal maturity. Remodeling of acetabular version was observed in younger patients; however, hips in older patients (> 8 years) at the time of operation and greater degrees of correction tended to result in AR.