The invention relates to a hip prosthesis provided with a shaft (1) which canbe inserted into a hole in the femur without using cement. The proximalsection of the shaft is made up of a base body and the form thereofcorresponds to the complementary form of the hole which is to be formed in thebone by means of a corresponding tool. A cuneus rib (12) is raised on thedorsal or ventral side of the base body and the width in the centre thereof isat least three times greater than the height thereof. The rear surface thereof(13) has rough and abrasive properties.
