Long-term radiographic results of the Saint Nabor non-cemented acetabular component

Between August 1985 and December 1987, a total of 303 total hip arthroplasties were performed in 275 patients using the Saint Nabor press-fit acetabular component. Radiographic evaluations were performed at an average of 18.1 years for 95 hips in 86 patients. Migration analyses of the femoral and acetabular components were also performed. Seventeen patients had early postoperative complications: aseptic loosening in 1 patient, luxation in 16 patients. Twenty-five patients (25 hips) had late postoperative complications involving aseptic loosening: 21 femoral components, 2 acetabular components, and 2 cases of both components. The average acetabular component migration in the horizontal direction was 1.71 mm and was 0.31 mm in the vertical direction. The Kaplan–Meier survival rate of the acetabular component at 19 years was 95%.