计算机辅助技术在颏部水平截骨整形中的应用研究

Objective: To explore the application of computer aided design (CAD) and computer aided manufacturing (CAM) in horizontal advancement genioplasty, and study the accuracy and superiority of CAD and CAM in the treatment of microgenia. Methods: The technique of CAD was applied to make the individual operation plan, determine the vertical and sagittal movements, prefabricate the individualized. With CAM, surgical templates were made to guide the surgery. According to preoperative planning, 9 patients with microgenia were received horizontal advancement genioplasty. To estimate the precision of CAD and CAM, we compared the preoperative design with the postoperative CT image. Results: All 9 patients suffering from microgenia were satisfied with the effective outcomes and the deformity of microgenia was corrected obviously. Conclusion: Based on clinic, our study combines the computer-assisted techniques with the treatment of microgenia, to fully take advantage of CAD and CAM to make the surgical plan and individualized templates, which can guide the surgery, save the operation time and reduce the risk of surgery. The aesthetic outcomes showed that applying computer-assisted techniques for horizontal advancement genioplasty provided precise surgical result.