Abstract
The clinical results of cemented hip arthroplasty in patients with DDH are excellent in terms of pain relief and implant longevity. The survivorship of the femoral stem in young patients less than 40 years of age is 97% at ten years and falls to 89% at 25 years. In comparison, survivorship of the acetabular component is 97% at ten years but falls to 58% at 25 years. The excellent survivorship of the femoral stem can be explained by a favourable canal flair index, competent cancellous bone, and secure fixation with acrylic cement. The inferior results of the acetabular component are explained by the distorted pelvic anatomy and lack of bone support for the acetabular component. We continue to recommend cemented hip arthroplasty in this cohort of patients. Our current practice is to use fourth generation cementing techniques and to employ autografting of the acetabulum to address some of the anatomical deficiencies of the original anatomy.
The abstracts were prepared by David P. Davlin. Correspondence should be addressed to him at the Orthopedic Clinic Bulovka, Budínova 2, 18081 Prague 8, Czech Republic.
