Patent ID: 6915150
Filing Date: 2005-07-05
Classification: A61B,A61F,G01S,Y10S

Abstract:
1. A method for the preoperative determination of positioning data of an endoprosthetic part of a knee joint relative to a thigh bone and a lower leg bone forming the knee joint, comprising the steps of: moving the thigh bone of the knee joint relative to a corresponding hip bone while determining the positions of the thigh bone and the hip bone, to determine a first articular point for said thigh bone in the area of the hip; the thigh and hip bone positions being determined by securely connecting marking elements to said bones and determining the respective positions of the marking elements using a measuring device that provides signals corresponding to the respective positions to a data processing system; determining a second articular point for said thigh bone in the area of the knee joint; determining a first characteristic direction for said thigh bone by way of a straight-line connection of the first and second articular points; and determining an orientation of the endoprosthetic part relative to the first characteristic direction.