| 摘要 |
PURPOSE: Prosthesis system is provided, which connects Endoprostheses to the ends of long bones by anchoring a shank of the prosthesis in the cavity of the long bone. CONSTITUTION: The prosthesis system consists of an endoprosthesis with a shank which is to be introduced into the medullary canal of a bone, and of a rasp(20) which is similar in shape to the shank and is used to prepare a cavity for receiving the shank. Along much of its length, the rasp has an untoothed profile part(25) which, instead of excavating the spongy bone substance, compacts the latter and thus ensures a secure fit of the prosthesis. In the area corresponding to the untoothed area of the rasp(20), the prosthesis shank preferably has a rib which cuts like a wedge into the compacted spongy substance.
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