System of end-user theses and devices for minimally invasive and cement-free implantation of endoprostheses of the shoulder and hip and offset enhancement of the femoral neck

摘要

Through the devices and apparatuses that are provided for performance of an implantation of endoprostheses, the previously unavoidable soft tissue damage and bone loss are largely reduced by carrying out the implantation via a narrow joint gap and a hole through the bone and through the rotational center point of the joint head. A fixation device and an extension arm of an extension device guarantee a bore true to angle, the system bore, through the proximal femur and femur head or humerus and humerus head. These must be extended with an extension device only by 2.0 to 2.7 cm in the bent position from the joint socket and are pivoted into the extension position. A narrow soft tissue access is therefore sufficient in order to introduce milling cutters and prostheses into the joint by means of a gripping tool. Through the system bore the drive shafts of the milling cutters as well as the press-in rods of the socket shell and the head prosthesis are guided true to angle and the latter pressed in by the press-in method and fixed by a fixation rod and counter plate. The devices are suitable for endoprosthesis implantations of the shoulder and hip.