Patent ID: 7635391

Claim:
An endoprosthesis for part of the pelvis comprising at least one base element which can be secured to a resected iliac bone and at least one hip shell attachable at a spacing thereto, the hip shell configured to replicate a portion of the pelvis and articulate with a femoral head, the base element having a first neck which projects at an angle α from the orthogonal to a planar connection surface and the hip shell having a second neck which projects at an angle β from its polar axis, each of the first neck and the second neck having an opening formed therein; at least one separate intermediate element having a bore extending therethrough, wherein the intermediate element is adapted to be installed between and secured to the first neck and the second neck by aligning at least a portion of the bore of the intermediate element with the openings in each of the first neck and the second neck; and a connection mechanism comprising a draw rod and a rotatable head, the rotatable head rotatably secured to the first neck, the draw rod received within the opening in the second neck and extending through the bore in the intermediate element and through the opening in the first neck to secure the draw rod to the rotatable head, whereby the connection mechanism secures the intermediate element to both of the first neck and the second neck.