ABSTRACT
The authors report a retrospective study about 50 THP realized at the department of the orthopedic-traumatism wing 32 in UHC Ibn Rochd of Casablanca between January 1992 and December 2001. The group includes 22 men [47,8%] and 24 women [52.2%]. The right hip hs been operated on in 30 cases [60%] and the left hip in 20 cases. 20 patients presented an aseptic osteonecrosis caused by a corticotheraphy, 7 patients suffered from ethylism and 5 patients had already been operated on. Postel and Merle d'Aubigne's quotation was used to value the state the hip before and after the operation. The postero-external tract of Moore was used in 47 cases [94%] and Harding in 3 cases [6%]. The THP were cimented in 34 cases [68%] and not cemented in 14 cases [28%]. After a recession of 4,7 years, we noticed as complications: 4 detachments [8%], 4 cases of the hip stiffness and 3 cases of periarticular ossifications, and accords DMA quotation, the results were satisfactory in 32 cases [64%], medium in 12 cases [24%] and bad in 6 cases [12%]. The THP is a choice method in the treatment of femoral head aseptic osteonecrosis, the success of the intervention depends on the respect of the indication and to correct realization of the operation