Long-term results of hybrid alumina-on-alumina total hip arthroplasty: 10-14-Year results

摘要

Between 2000 and 2004, 89 hybrid alumina-on-alumina hip replacements were performed by a single surgeon. There were 46 men and 43 women with an average age of 51 years. All patients were followed up for a minimum of 10 years. Prior to surgery, the mean Harris hip score (HHS) was 44 points (35-55). Following surgery, the HHS improved to an average of 94 points (87-100). There was no significant decline in pain and function even into the second decade following hip replacement. At final follow-up, the average UCLA activity score was 7.3 (range: 3-10). No osteolysis was observed at a mean radiographic follow-up of 123 months. One patient (2 hips) required revision surgery for bilateral femoral component loosening at 11.2 years and 11.9 years, respectively. There were no cases of ceramic fractures or squeaking in this series. Survivorship at 13.5 years with implant revision for any reason as the end point was 96.2%. Consequently, hybrid alumina-on-alumina total hip arthroplasty in this series provided reliable and durable and functioned well into the second decade with low wear rates and high survivorship.