Computer-assisted preoperative simulation for positioning and fixation of plate in 2-stage procedure combining maxillary advancement by distraction technique and mandibular setback surgery

Hideyuki Suenaga; Asako Taniguchi; Kazumichi Yonenaga; Kazuto Hoshi; Tsuyoshi Takato

doi:10.1016/j.ijscr.2016.10.004

Computer-assisted preoperative simulation for positioning and fixation of plate in 2-stage procedure combining maxillary advancement by distraction technique and mandibular setback surgery

Int J Surg Case Rep. 2016:28:246-250. doi: 10.1016/j.ijscr.2016.10.004. Epub 2016 Oct 4.

Authors

Hideyuki Suenaga¹, Asako Taniguchi², Kazumichi Yonenaga², Kazuto Hoshi², Tsuyoshi Takato²

Affiliations

¹ Department of Oral-Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Tokyo, Japan. Electronic address: suenaga-tky@umin.ac.jp.
² Department of Oral-Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Tokyo, Japan.

Abstract

Introduction: Computer-assisted preoperative simulation surgery is employed to plan and interact with the 3D images during the orthognathic procedure. It is useful for positioning and fixation of maxilla by a plate. We report a case of maxillary retrusion by a bilateral cleft lip and palate, in which a 2-stage orthognathic procedure (maxillary advancement by distraction technique and mandibular setback surgery) was performed following a computer-assisted preoperative simulation planning to achieve the positioning and fixation of the plate. A high accuracy was achieved in the present case.

Presentation of case: A 21-year-old male patient presented to our department with a complaint of maxillary retrusion following bilateral cleft lip and palate. Computer-assisted preoperative simulation with 2-stage orthognathic procedure using distraction technique and mandibular setback surgery was planned.

Discussion: The preoperative planning of the procedure resulted in good aesthetic outcomes. The error of the maxillary position was less than 1mm.

Conclusion: The implementation of the computer-assisted preoperative simulation for the positioning and fixation of plate in 2-stage orthognathic procedure using distraction technique and mandibular setback surgery yielded good results.

Keywords: Computer-assisted preoperative simulation; Maxillary distraction osteogenesis; Maxillary positioning; Orthognathic surgery.