Cementless Total Hip Arthroplasty in Patients with Crowe Type-4 Developmental Dysplasia

Background Developmental dysplasia of the hip is one of the most common causes of secondary osteoarthritis. The purpose of our study was to review clinical and radiological outcomes of reconstruction surgery using cementless total hip arthroplasty in patients with Crowe type-IV dysplastic hips. Methods This study included eighty-seven primary total hip arthroplasties performed between January 2005 and January 2010 at our clinic in 74 patients who had Crowe type-IV developmental dysplasia of the hip. Cementless total hip arthroplasty was applied in all hips. At the clinical status analysis, any limping, the Harris hip score, surgical approach, the use of bone grafts, the presence of femoral osteotomy, any component migration, union status of the osteotomy site (if present), and any osteolysis or heterotopic ossification were noted. Mean follow-up time was 4.8 years. Results Mean Harris hip score was improved from 41.8 points preoperatively to 86.2 points postoperatively (p