| abstract |
The invention relates to an acetabulum (16) for a hip joint endoprosthesis (12), the acetabulum being formed, or substantially formed, as a section of a hollow-spherical shell (28). The acetabulum comprises an acetabular wall (30) having at least one through-opening (38) closed by a closing element (52) integrally formed with the acetabular wall. Between the closing element and the acetabular wall, there is at least one predetermined breaking point (70) which can be irreversibly destroyed in order to remove the closing element from the acetabular wall. In order to improve such an acetabulum such that the through-opening can be re-closed simply and securely after the closing element has been irreversibly separated, according to the invention, the socket comprises at least one connecting system for frictionally and/or interlockingly connecting the closing element, which has been removed from the acetabular wall, to the acetabular wall in a connection position. The invention also relates to an improved joint endoprosthesis comprising a socket and a shaft coupled to the socket by a ball-and-socket joint. |