METHOD FOR DISPLAY OF THE POSITION AND ORIENTATION OF A SURGICAL TOOL AND DEVICE FOR CARRYING OUT SAID METHOD

摘要

According to the invention, an easily understood and operator-guiding representation relative to the femur and the mid-point of the ball joint on positioning of the tool may be provided in a method for display of the position and orientation of a tool for the preparation of a femur for a femur implant engaging with a ball joint in the acetabulum of the pelvis, or in a joint socket, inserted in the pelvis or similar, whereby, in a transverse plane of the femur (16) at the level of the mid-point (M) of the ball joint (20), the above and an intersection line (21) of said transverse plane and an instrument plane (17) are represented, which pass through the midpoint of the ball joint (20). A device for carrying out said method is also disclosed.