Publication: Intraoperative navigation for single-splint two-jaw orthognathic surgery: From model to actual surgery
Issued Date
2015-01-01
Resource Type
ISSN
18784119
10105182
10105182
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2-s2.0-84939464735
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Cranio-Maxillofacial Surgery. Vol.43, No.7 (2015), 1119-1126
Suggested Citation
Hsin Wen Chang, Hsiu Hsia Lin, Peerasak Chortrakarnkij, Sun Goo Kim, Lun Jou Lo Intraoperative navigation for single-splint two-jaw orthognathic surgery: From model to actual surgery. Journal of Cranio-Maxillofacial Surgery. Vol.43, No.7 (2015), 1119-1126. doi:10.1016/j.jcms.2015.06.009 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/35878
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Title
Intraoperative navigation for single-splint two-jaw orthognathic surgery: From model to actual surgery
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Abstract
© 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved. Objective This study reported an intraoperative navigation system for single-splint two-jaw orthognathic surgery, and assessed the accuracy of transferring the computer assisted surgical simulation. Methods A skull model was used for validation, and twenty patients receiving such procedure were enrolled. The procedure contained five phases, including virtual surgery on three-dimensional images, fabrication of surgical positioning guides, preparation of registration and validation landmarks, confirmation of bony position during surgery, and postoperative assessment. Target registration error (TRE) and differences between simulation (T0) and postoperative images (T1) were measured from landmarks to Frankfort horizontal plane (FHP), mid-sagittal plane (MSP), and coronal plane (COP). Results For the model experiment, mean TRE was lowest using the hard tissue landmarks (0.60 ± 0.27 mm), and the mean difference (T1-T0) was less than 1 mm to all three planes. For the patients, mean TRE was 1.07 ± 0.18 mm from the hard tissue landmarks. The mean difference was 0.96. ± 0.60 mm from MSP, 1.39 ± 1.11 mm from FHP, and 2.12 ± 1.82 mm from COP. The differences were not significant. Both surgeons and patients were satisfied with the surgical outcome. Conclusion This study showed that the navigation system had acceptable accuracy and was useful for the two-jaw orthognathic surgery using single-splint method.