Determination of the femoral shaft axis and the femoral neck axis and its 3D reconstruction

摘要

The method involves determining an image regulation to image a model on a retainer of a region of a body structure. A position of a characteristic axis such as femoral shaft and neck axis (9, 8) is mapped with the determined regulation to maintain the position of the axis into two-dimensional image. A three-dimensional position of the characteristic axis is determined from the characteristic axis in the two-dimensional image. Independent claims are also included for the following: (1) a navigation method for navigating an instrument or an implant (2) a computer program loaded into a computer to execute a method for determining a femoral shaft axis and femoral neck axis of a body structure (3) a device for determining a femoral shaft axis and femoral neck axis of a body structure.