Fourteen Moore's prosthetic replacements were carried out on ten patients with corticosteroid-induced avascular necrosis of the femoral head. The diseases for which corticosteroid therapy was applied were renal transplantation of 5 cases, systemic lupus erythematosus of 2 cases, and nephrosis syndrome of 3 cases. Six patients were men and four, women. Their ages at the time of surgical treatment ranged from twenty-four to thirty-six years with a mean of thirty years. All but one had bilateral femoral head involvement. Follow-up ranged from one year to six years and eight months. In the follow-up, roentgenograms showed several changes such as loosening, periarticular calcification, distal migration and proximal migration. Ten patients were clincally evaluated by the method of the criteria of coxarthrosis compiled by Jap. Orthop. ASS. The results of treatment were rated good or excellent for pain, mobility, gait and ADL.
