This perspective study analyzes the long-term outcomes of cementless anatomic total hip arthroplasty (THA) in patients with developmental dysplasia of the hip (DDH). Between 1990 and 2004, 100 ABG total hip prosthesis were implanted in 87 patients with DDH. The average follow-up was 9 years (range 4-18 years). The mean Harris Hip Score was 87.13 (SD = 14.6) at the last follow-up. Radiographic analysis showed good results for the stems, while in 38% of the hips we recorded periacetabular bone resorption. Mean linear polyethylene wear was 0.23 mm/year. Ten revisions have been performed, survival rate was 99% for the stems and 90% for the cups. Cementless THA with hemispherical cup and anatomical stem is recommended when possible for patients with DDH although high rates of polyethylene wear and subsequent osteolysis have been the limiting factor in the long-term success of this implant.
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