Clinical evaluation of a novel press-fit acetabular cup using "Ein-Bild-Roentgen-Analysis" (EBRA): A positive short-term prognosis.

Introduction: Demographic change and demand for high quality of life lead to increasing implantation numbers. Aim of this study was to compare the Plasmafit(R) cup to Allofit(R) and Plasmacup(R). Methods: The study included 174 patients who had received 33 Plasmacup(R), 68 Allofit(R) and 73 Plasmafit(R) cup implants. These were reviewed postoperatively, after 6 months control and after 12 months. Results: No significant progressive migration could be discovered in any of the cup systems. At each follow-up the cups showed nearly constant values. Conclusions: All examined acetabular cups showed excellent migration behavior within the first 12 postoperative months.