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Applying Computer Techniques in Repairing Mild Mandibular Asymmetry With High-Density Porous Polyethylene

Wang, Meng MD*; Liu, Wei MD*; Niu, Feng MD*; Qiu, Shuang MD*; Liu, Xiaojing MD; Gui, Lai MD*

Journal of Craniofacial Surgery:
doi: 10.1097/SCS.0b013e318240c83e
Original Articles
Abstract

Objective: The purpose of this study was to explore a new method to repair mild mandibular asymmetry using computer-aided design technique.

Methods: Medical three-dimensional image reconstruction and mirror technique were applied to design individual Medpor implant before operation. A surgical procedure was performed in 9 patients with mild mandibular asymmetry according to the preoperative planning. The Medpor implants in the body were displayed using surface rendering technique after operation, and the postoperative evaluation was performed using matching technique.

Results: All the patients had an ideal clinical outcome, with no complications. Virtual images from preoperative design and postoperative three-dimensional images were registered and superimposed onto each other. The percentage of matching was 87.6% to 96.8% with an average of 93.8% ± 2.4%.

Conclusions: The computer techniques play an important role in repairing mandibular asymmetry and will be used widely in craniofacial surgery.

Author Information

From the *Department of Craniomaxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Science, Peking Union Medical College; and †Department of Oral and Maxillofacial Surgery, School of Stomatology, Peking University Hospital of Stomatology, Peking University, Beijing, China.

Received November 25, 2010.

Accepted for publication January 30, 2011.

Address correspondence and reprint requests to Lai Gui, MD, Department of Craniomaxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Science, Peking Union Medical College, No 33, Ba-Da-Chu Rd, Shi Jing Shan District, Beijing, 100144, China; E-mail: laiguiplastic@tom.com

The authors report no conflicts of interest.

© 2012 Mutaz B. Habal, MD