| abstract |
© Shell element (1) for receiving a joint endoprosthesis, in particular a hip joint endoprosthesis, with an outer shell (10) facing a hip bone and an inner shell (20) radially spaced therefrom, which receives an inlay (40) for the joint ball on its joint side, whereby on the The side of the outer shell (10) facing the hip bone is provided with radially projecting thread sections (12) in the circumferential direction, which are arranged in rows (13) and are interrupted by grooves (11) running at an angle to the thread axis and essentially transverse to the thread sections (12), whereby a cutting thread is formed for screwing into the hip bone; and in the outer shell (10) a plurality of openings distributed over the surface of the outer shell (10) are provided in the form of elongated openings (11), which also have an intermediate space (50) formed between the inner shell (20) and the outer shell (10) connect the hip bone lying against the outer shell (10), and via which bone substance can be introduced into the intermediate space (50) and, after the implantation has been carried out, supply the introduced bone substance and allow new hip bone substance to grow in, the grooves (11) being essentially Elongated openings (11) extending transversely to the circumferential direction and almost over the height of the outer shell (10) are formed. |