Verfahren und Vorrichtung zur präoperativen Bestimmung der Positionsdaten von Endoprothesenteilen

摘要

A process is disclosed for the preoperative determination of positioning data of endoprosthesis parts of a central joint relative to the bones that form the central joint. In order to detect the position of the bones in the body without a complex process, an outer articulation point is determined in that the bones are displaced around an outer joint located at the end of both bones away from the central joint, an articulation point is determined for each bone in the region of the central joint, a characteristic direction for both bones is determined by interconnecting the thus detected two articulation points for each bone by a straight line, and the orientation of the endoprosthesis parts relative to this characteristic direction is determined. Also disclosed is a device for carrying out this process.