[Virtual planning and intraoperative control using computer navigation systems in orthognatic surgery].

The Aim: To evaluate versality and accuracy of computer navigation in orthognathic surgery, analyzing the position of osteotomized bone fragments on virtual and postoperative 3D models.

Material And Methods: During our study we operated 27 patients with different asymmetric deformations of facial skeleton (13 patients with Class III Angle, 11 patients with Class II Angle and 3 patients with hemifacial microsomia). In 7 clinical cases optical navigation stations BrainLab 18070 Kick («BrainLab», Germany) and Stryker CranialMap CMF Version 2.