Fig. 2From: Evaluation of postoperative changes in condylar positions after orthognathic surgery using balanced orthognathic surgery systemThree-dimensional coordinate system. The Frankfort horizontal plane is the reference plane, and the nasion is the center of all axes. The medial-lateral movement was evaluated by the x-axis. The vertical movement was evaluated by the y-axis. The anterior-posterior movement was evaluated by the z-axisBack to article page