Computer Assisted & Ultrasonic
Facial Skeletal Surgery
~ Efficiency, Precision and Safety ~
Michael
Yuanchien CHEN
Computer
Assisted Surgery (CAS) can be categorized into 3 subgroups, robotic surgery,
navigation systems and CAD/CAM technology. However, robotics seemed to be more
practical and limited to soft tissue dissection while navigation procedures are
generally considered time consuming during preoperative setting.
So, the outcomes
of utilizing computer-aid virtual planning(CAD) and additive manufactured cutting
/ positioning guides(CAM) as well as powerful ultrasonic apparatus (BoneScalpel
TM by Misonix Inc, Farmingdale, NY, USA & BONEMED Surgery Unit
TM, VIA-TECH Biomedical. Co. Ltd, Taiwan) with tissue selective cutting
characteristics in a series of more than 100 patients underwent 2-jaw orthognathic
surgery in the OMS department of China Medical University Hospital, Taichung
City, Taiwan from Jul. 2014 ~ Jul. 2017 will be presented. Both efficiency and
preciseness are significantly improved by applying CAD/CAM technology in our
case series especially for asymmetric cases when complicated pitch, roll, yaw
are inevitable in which traditional 2D analysis is certainly insufficient and not
reliable. The same CAD/CAM concepts are also applicable to cosmetic facial bone
contouring and selected cases of benign jaw bone tumor resection with immediate
reconstruction through trans-oral approach.
