A Determination Method of the Femoral Bone Coordinate System by Integrating an Ultrasound Device with a 3D Electromagnetic Device

Abstract

This paper proposes new determination method of the bone axis of the femur by integrating an ultrasound device with a 3D electromagnetic device. Recently, quantitative measurement method intra-surgery has been received grate attention. Problems how to determine the bone axes are always raised in the clinical situation. Especially, the conventional method usually uses the major trochanter as a reference point, however, it cannot be access in anterior cruciate ligament reconstruction. This study provides one of the solutions about the problem by integrating an ultrasound device with a 3D electromagnetic device. In the experiment, our method was compared with the conventional method where both of methods were applied for one cadaveric body. As a result, the 6DOF calculated by our method without using the major trochanter, was similar to the conventional method.