Anchoring problems in cemented total hip endoprosthesis--a review of the literature]

The question as to what constitutes the most suitable material for the cemented total hip endoprosthesis has not yet been decided. Owing to the different modules of elasticity of titanium and CoCr alloy, the characteristics of force transmission into the proximal femur vary. Titanium alloys load the proximal femur earlier and more markedly, and therefore counteract possible bone degeneration; whereas the CoCr alloys are associated with less stressing of the bone cement in the critical region of the calcar femorale. This paper is a review of the various analytical, experimental and clinical publications on the subject. Besides the question of material, the problems of bone cement and its application are also discussed.