Abstract
31 cases of the hiparthrodesis, operated in our clinic, were examined by means of questionnaire. 18 cases of which were examined clinically and radiogically with paticular emphasis on the changes in the lumbar spine, in the other hip and in the knee of operated side. It was suspected from the results that the fixation of the hip in neutral abduction-adduction and slight flexion is desirable from the effect on lumbar spine.