The authors define the current role of femoral osteotomy in the treatment of the sequelae of congenital hip dysplasia (CHD) in the adult in light of the increasing orientation towards prosthetization. They report a personal philosophy on the subject after analyzing the criteria on which are based indications for osteotomy, the various types of osteotomy, the influence of osteotomy on other skeletal regions, the problems of prosthetization on osteotomy, and expectations concerning of the quality of the life of the patients submitted to osteotomy.