Computer-assisted design of orbital implants.
OBJECTIVE
The purpose of this study is to report on the use of a computer-assisted design (CAD) system for predictable preoperative planning of orbital implant surgery (determination of the optimal number and position of orbital implants).


METHODS
Preoperative computed tomographic data were processed by interactive software for predictable surgical planning of orbital implant placement. Reformatted images from axial scans were used to analyze the structure of orbital bone and to plan the number of implants to place and the sites in which to place them.


RESULTS
Surgeries to correct orbital defects in 6 patients were successfully designed with this method. Seventeen implants were placed in 6 patients with the CAD system with no intraoperative injuries. Satisfactory anatomic and esthetic results were achieved.


CONCLUSIONS
The new CAD system optimized preoperative surgical planning for orbital implant placement. The software may be applied in other craniofacial areas for implant placement in the future.
Zhang
Xing
X
Department of Stomatology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Chen
Songling
S
Huang
Yuanliang
Y
Chang
Shixin
S
D000293:Adolescent; D000328:Adult; D017076:Computer-Aided Design; D004954:Esthetics; D015353:Eye Enucleation; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000293:injuries / Q000601:surgery; D020273:Orbital Implants; D009918:Orbital Neoplasms / Q000601:surgery; D010347:Patient Care Planning; D011474:Prosthesis Design; D012984:Software; D014057:Tomography, X-Ray Computed / Q000379:methods