The comparison of three different fixation methods on bilateral sagittal split ramus osteotomy mandibular on a 3D of fully modelled mandible by the finite element method
Abstract
In this paper, a full mandibular CT-scan in a specific patient is used to model BSSO surgery. The purpose is to compare the three most common fixation methods which are used in BSSO surgery by finite element method. Three different fixations are studied in order to obtain the minimum displacement of the lower jaw and optimum stress and strain on the specified fixation. The methods are two parallel plates with four screws, the operation of triangular screw configuration and one plate with four screws. The plates and the screw are modeled precisely by point clouds of Synthes Brand’s plate and screw. The mechanical properties of the full mandibular and, to obtain a practical model after the surgery, the mean jaw forces are extracted from literatures. It is resulted that the minimum displacement and stresses on the mandible and fixation tools happened in the Triangular screw configuration model and the two other methods have higher stress and lower displacement. Therefore, the mandibular in triangular method, experiences little deformation and the screws toler-ates lower stress and strain which is better than the other two methods.Keywords: Finite element analysis; FEA; Sagittal split ramus osteotomy; Parallel plates; Triangularscrew.
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[6] A. Breidahl, "Manual of Internal Fixation in the Craniofacial Skeleton," The Australian and New Zealand Journal of Surgery, vol. 70, pp. 829-830, 2000.
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[9] E. Ellis 3rd, "Lag screw fixation of mandibular fractures," The Journal of cranio-maxillofacial trauma, vol. 3, pp. 16-26, 1997.
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[2] L. A. Monson, "Bilateral sagittal split osteotomy," in Seminars in plastic surgery, 2013, pp. 145-148.
[3] R. C. Edwards, K. D. Kiely, and B. L. Eppley, "Fixation of bimaxillary osteotomies with resorbable plates and screws: experience in 20 consecutive cases," Journal of oral and maxillofa-cial surgery, vol. 59, pp. 271-276, 2001.
[4] F. Sato, L. Asprino, P. Noritomi, J. da Silva, and M. de Moraes, "Comparison of five differ-ent fixation techniques of sagittal split ramus osteotomy using three-dimensional finite elements analysis," International journal of oral and maxillofacial surgery, vol. 41, pp. 934-941, 2012.
[5] B. Bohluli, M. H. K. Motamedi, P. Bohluli, F. Sarkarat, N. Moharamnejad, and M. H. S. Tabrizi, "Biomechanical stress distribution on fixation screws used in bilateral sagittal split ramus osteotomy: assessment of 9 methods via finite element method," Journal of Oral and Maxillofacial Surgery, vol. 68, pp. 2765-2769, 2010.
[6] A. Breidahl, "Manual of Internal Fixation in the Craniofacial Skeleton," The Australian and New Zealand Journal of Surgery, vol. 70, pp. 829-830, 2000.
[7] P. Aquilina, W. C. Parr, U. Chamoli, and S. Wroe, "Finite element analysis of patient-specific condyle fracture plates: a preliminary study," Craniomaxillofacial Trauma and Recon-struction, vol. 8, pp. 111-116, 2015.
[8] F. Atik, M. Ataç, A. Özkan, Y. Kılınç, and M. Arslan, "Biomechanical analysis of titanium fixation plates and screws in mandibular angle fractures," Nigerian journal of clinical practice, vol. 19, pp. 386-390, 2016.
[9] E. Ellis 3rd, "Lag screw fixation of mandibular fractures," The Journal of cranio-maxillofacial trauma, vol. 3, pp. 16-26, 1997.
[10] E. Ellis, G. S. Throckmorton, and D. P. Sinn, "Bite forces before and after surgical correc-tion of mandibular prognathism," Journal of oral and maxillofacial surgery, vol. 54, pp. 176-181, 1996.
| Files | ||
| Issue | Vol 6, No 3 (Summer 2019) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/jcr.v6i3.3258 | |
| Keywords | ||
| Finite element analysis; FEA; Sagittal split ramus osteotomy; Parallel plates; Triangular screw. | ||
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
How to Cite
1.
Ghorashi SM, Keshavarzi MM, Damercheli S, Parhiz A. The comparison of three different fixation methods on bilateral sagittal split ramus osteotomy mandibular on a 3D of fully modelled mandible by the finite element method. J Craniomaxillofac Res. 2020;6(3):113-121.
