Hydroxyapatite-coated total hip replacement in Paget's disease - 20 patients followed for 4-8 years

20 patients, who had had total hip replacements for symptomatic osteoarthro sis secondary to Paget's disease, were followed for a mean of 6 (4-8) years , Proximal hydroxyapatite-coated stems were implanted in all patients, 12 p atients received hydroxyapatite-coated, 2 cemented (Muller type) and 6 ceme ntless cups (Morsher type). The mean Harris hip score was 31 (7-40) points preoperatively and 88 (74-100) postoperatively, The radiographic evaluation revealed good stability and fixation using Engh's criteria, One stem subsi ded early more than 5 mm and then seemed to stabilize, Our findings support the use of hydroxyapatite total hip implants for patients with this diseas e and osteoarthrosis.