正颌外科手术数字化辅助定位方法研究

Design of aided digital navigation mothod by computer-aided orthognathic surgery

目的:提出一种正颌外科手术数字化定位方法。方法:根据计算机模拟结果设计基于分离骨段表面特征与空间位置关系的定位板,通过快速成型技术完成数字化定位板的制造,进行模型验证。结果:设计制作出SSRO骨表面划线和定位模板,骨表面定位板可以较为精确的对各骨段间定位,在三维方向贴合良好。结论:骨表面定位板提高了术后骨段间的精确性,是一种较为方便易行的正颌外科辅助定位方法,为进一步研究颌骨的定位分析打下基础。

Objective To put forward the digital navigation method by computer-assisited orthognathic surgery. Methods According to the simulation result, the surface templates was designed which fit the bone segments＂ surface characteristics and space position to increase the navigation progress accurately. Results The result showed that SSR~ Templates was fabricated with RP technology and used in the model surgery. The surface templates can be more accurate positioning between the bone segment and achieved in three-dimensional direction. Conclusion The method improve the accuracy between the postoperative bone segments.it is a relatively convenient and feasible method of aided positioning.