Experience with cementless Protetim 'M' total hip endoprosthesis (A preliminary report)

A cementless Protetim 'M' endoprosthesis is used as an alternative to the cemented endoprosthesis. In the period from May 1992 to August 1992, 17 Protetim 'M' endoprostheses were implanted in 17 hips in 17 patients in our department. Of these 16 were without complaints after an average follow-up of 6.2 months (range 5-8 months). In one case longitudinal fissuring of the femur immediately distal to the end of the stem was observed in the postoperative X-ray control film. The patient, however, was asymptomatic during the early postoperative and follow-up period. Valgus positioning of the femoral component is essential in order to achieve good stability of the endoprosthesis.