Single Stage Total Hip Arthroplasty In Adult Patients With Developmental Hip Dysplasia (Crowe type lll, lV)

Abstract

Total hip arthroplasty for patients with hip dysplasia is challenging and technically demanding. The normal hip joint anatomy becomes distorted in the presence of congenital hip joint dislocation and proximal femoral migration. Congenital hip joint dysplasia or dislocation, juvenile rheumatoid arthritis and epiphyseal dysplasia are examples of disorders leading to dysplastic hips. In hip dysplasia, the head of femur becomes flattened on the posteromedial surface and femoral anteversion gradually increases. Because the head of femur is not concentrically reduced, the acetabulum becomes shallow and dysplastic. Despite available screening programs, a large number of patients still suffer from the sequelae of hip dysplasia or dislocation in adulthood. Studying of the pathoanatomy of the acetabulum and the femur associated with congenital hip disease in adults lead to the development of classification systems for these hips, and the development of specific reconstruction techniques for both the acetabulum and the femur as an adjunct to treatment with total hip replacement.