Biomechanical analysis of subcondylar fracture fixation using miniplates at different positions and of different lengths

doi:10.1186/s12903-021-01905-5

中山醫學大學機構典藏 CSMUIR > 中山醫學大學研究成果 > 期刊論文 > Item 310902500/23353

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/23353

Title:	Biomechanical analysis of subcondylar fracture fixation using miniplates at different positions and of different lengths
Authors:	Huang, CM;Chan, MY;Hsu, JT;Su, KC
Keywords:	Subcondylar fracture;Open reduction and internal fixation;Miniplates
Date:	2021
Issue Date:	2022-08-05T09:35:54Z (UTC)
Publisher:	BMC
ISSN:	1472-6831
Abstract:	Background Many types of titanium plates were used to treat subcondylar fracture clinically. However, the efficacy of fixation in different implant positions and lengths of the bone plate has not been thoroughly investigated. Therefore, the primary purpose of this study was to use finite element analysis (FEA) to analyze the biomechanical effects of subcondylar fracture fixation with miniplates at different positions and lengths so that clinicians were able to find a better strategy of fixation to improve the efficacy and outcome of treatment. Methods The CAD software was used to combine the mandible, miniplate, and screw to create seven different FEA computer models. These models with subcondylar fracture were fixed with miniplates at different positions and of different lengths. The right unilateral molar clench occlusal mode was applied. The observational indicators were the reaction force at the temporomandibular joint, von Mises stress of the mandibular bone, miniplate and screw, and the sliding distance on the oblique surface of the fracture site at the mandibular condyle. Results The results showed the efficacy of fixation was better when two miniplates were used comparing to only one miniplates. Moreover, using longer miniplates for fixation had better results than the short one. Furthermore, fixing miniplates at the posterior portion of subcondylar region would have a better fixation efficacy and less sliding distance (5.46-5.76 mu m) than fixing at the anterolateral surface of subcondylar region (6.10-7.00 mu m). Conclusion Miniplate fixation, which was placed closer to the posterior margin, could effectively reduce the amount of sliding distance in the fracture site, thereby achieving greater stability. Furthermore, fixation efficiency was improved when an additional miniplate was placed at the anterior margin. Our study suggested that the placement of miniplates at the posterior surface and the additional plate could effectively improve stability.
URI:	http://dx.doi.org/10.1186/s12903-021-01905-5 https://www.webofscience.com/wos/woscc/full-record/WOS:000709803600001 https://ir.csmu.edu.tw:8080/handle/310902500/23353
Relation:	BMC ORAL HEALTH ,2021,v21,issue 1
Appears in Collections:	[中山醫學大學研究成果] 期刊論文

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	576	View/Open

Loading...