Abstract
Between 1991 and 2003, 14 revision total hip arthroplasties (THA) were performed in 14 patients using hydroxyapatite (HA) for acetabular bone defects. The preoperative diagnosis was osteoarthritis in all patients. All patients were women. The average age at operation was 58.7 years old (range 40-68 years old), and the mean follow-up period was 7.6 years (range 1-13 years) . The clinical result were assessed by the hip rating score of the Japanese Orthopaedic Association (JOA score) . The preoperative average of 52.6 points (range 46-62 points) significantly improved to the postoperative average of 84.7points (range 78-90 points) . Direct bonding of host bone to HA was observed radiologically. In X-ray evaluation, there was no loosening nor osteolysis. There was no complication. Acetabular reconstruction with HA granules provided satisfactory clinical and radiological results.
