The durability of hip endoprostheses depends on a variety of influences. Besides the use of biocompatible materials, premature implant failures can occur that require complex revision surgeries. Since hip endoprostheses are characterized by a modular system, their interfaces are a frequent cause of failure. Consequently, the occurrence of micromotion at the modular taper junction can cause the release of metal particles and ions due to fretting corrosion. In this publication, the adhesive strength of the taper junction of modular hip endoprostheses is examined. In order to improve the tapers bearing area, the surface structures of the femoral stem taper were modified by different manufacturing processes and mechanically examined in a torsion test. In this case, especially turn-milling was applied which causes a structured surface topography due to the kinematic conditions.

髋关节假体的耐用性取决于多种因素。除了使用生物相容性材料之外，还可能发生过早的植入失败，这需要复杂的翻修手术。由于髋关节假体以模块化系统为特征，因此它们的接口经常会导致故障。因此，由于微动腐蚀，在模块化锥度接合处发生微动会导致金属颗粒和离子的释放。在该出版物中，检查了模块化髋关节假体的锥形连接的粘合强度。为了改善锥度支承面积，通过不同的制造工艺对股骨柄锥度的表面结构进行了修改，并在扭转试验中对其进行了机械检查。在这种情况下，