Prevention of heterotopic ossification after total hip replacement: A prospective comparison of indomethacin and salmon calcitonin in 60 patients

We did a prospective consecutive study of prophylaxis for heterotopic ossification (HO) comparing indomethacin (100 mg/day) and salmon calcitonin (3 MRC-U/kg/day) for 14 days. Each group consisted of 30 patients. 19 patients in the indomethacin group and 2 in the calcitonin group developed HO. We conclude that use of calcitonin in the prophylaxis of HO after total hip replacement is more effective than indomethacin.