Mixed reality-assisted orthognathic surgery with pre-bent titanium plates.

Orthognathic surgery using pre-bent titanium plates and cutting guides has been shown to enhance surgical precision in positioning the maxilla. This technical note introduces an innovative approach that utilizes mixed reality to pre-bend titanium plates and simulate surgical guides with osteotomy lines and drilling holes, thereby aiding in the localization of the maxilla. Postoperative computed tomography showed a discrepancy of <2 mm in comparison to the preoperative virtual design. The virtual surgical planning for orthognathic surgery was dynamically transferred to the surgical procedure in real time, eliminating the need for complex guide systems, optimizing navigation methods, and enhancing navigation accuracy.