Medical implants and instruments; in particular implants for the partial or complete replacement of bones; in particular of joints; implants for the fixation of bones; parts of these products; prostheses, in particular hip joint prostheses, hip joint shafts; plates, screws, instruments required for the implantation; medical implants and instruments with fully or partly structured surfaces; medical implants and instruments of metal or partly of metal, with a partial or complete metal surface, in particular with a metallic surface which partly or completely has a surface structure, in particular medical implants with a surface of titanium