The present invention relates to a method for acquiring the position of points for navigated surgery, the method being constituted to be executed by a computer and comprising the following steps:—acquiring, on the basis of detecting a first tracked device, first point position data for each of at least two points, wherein the first point position data comprise point position information describing the three-dimensional position of the point within a first co-ordinate system assigned to the first tracked device；—acquiring first co-ordinate transformation data for each of at least two points, wherein the first co-ordinate transformation data comprise co-ordinate transformation information describing a transformation of the three-dimensional position of the point from the first co-ordinate system to a second co-ordinate system；—acquiring second co-ordinate transformation data for each of at least two points, wherein the second co-ordinate transformation data comprise co-ordinate transformation information describing a transformation of the three-dimensional position of the point from the second co-ordinate system to a third co-ordinate system assigned to a second tracked device；—determining, on the basis of the first and second co-ordinate transformation data, second point position data for each of at least two points, wherein the second point position data comprise point position information describing the three-dimensional position of the point within the third co-ordinate system； wherein the second point position data of at least one of the at least two points are determined on the basis of the second co-ordinate transformation data of at least one other of the at least two points.La présente invention concerne un procédé d'acquisition de la position de points pour une chirurgie naviguée, le procédé étant constitué de façon à être exécuté par un ordinateur et comprenant les étapes consistant à : - acquérir, sur la base d'une détection d'un premier dispositif suivi,
