Objective: To investigate the biomechanical properties of the retropharyngeal reduction plate by comparing the traditional posterior pedicle screw-rod fixation by finite element analysis.Methods: Two three-dimensional finite element digital models of the retropharyngeal reduction plate and posterior pedicle screw-rod fixation were constructed and validated based on the DICOM (Digital Imaging and Communications in Medicine) data from C1 to C4. The biomechanical finite element analysis values of two internal fixations were measured and calculated under different conditions, including flexion, extension, bending, and rotation.Results: In addition to the backward extension, there was no significant difference in the maximum von Mises stress between the retropharyngeal reduction plate and posterior pedicle screw fixation under other movement conditions. The retropharyngeal reduction plate has a more uniform distribution under different conditions, such as flexion, extension, bending, and rotation. The stress tolerance of the two internal fixations was basically consistent in flexion, extension, left bending, and right bending.Conclusion: The retropharyngeal reduction plate has a relatively good biomechanical stability without obvious stress concentration under different movement conditions. It shows potential as a fixation option for the treatment of atlantoaxial dislocation.
机构:
Capital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
Capital Med Univ, Beijing Key Lab Fundamental Res Biomech Clin Appl, Beijing 100069, Peoples R ChinaCapital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
Bo, Xuefeng
Wang, Weida
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机构:Capital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
Wang, Weida
Chen, Zan
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机构:
Capital Med Univ, Xuanwu Hosp, Beijing 100069, Peoples R China
Pera Corp Ltd, Beijing Branch, Beijing 100025, Peoples R ChinaCapital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
Chen, Zan
Liu, Zhicheng
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机构:
Capital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
Capital Med Univ, Beijing Key Lab Fundamental Res Biomech Clin Appl, Beijing 100069, Peoples R ChinaCapital Med Univ, Sch Biomed Engn, Beijing 100069, Peoples R China
机构:Cent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Lue, Guohua
Passias, Peter G.
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MA Gen Hosp, Dept Orthopaed Surg, Boston, MA USA
Harvard Univ, Sch Med, Boston, MA USACent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Passias, Peter G.
Li, Gang
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MA Gen Hosp, Dept Orthopaed Surg, Boston, MA USA
Harvard Univ, Sch Med, Boston, MA USA
Peking Univ, Hosp 3, Dept Orthopaed Surg, Beijing 100871, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Li, Gang
Kozanek, Michal
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MA Gen Hosp, Dept Orthopaed Surg, Boston, MA USA
Harvard Univ, Sch Med, Boston, MA USA
Comenius Univ, Dept Orthopaed Surg, Ruzinov Fac Hosp, Sch Med, Bratislava, SlovakiaCent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Kozanek, Michal
Rehak, Lubos
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Comenius Univ, Dept Orthopaed Surg, Ruzinov Fac Hosp, Sch Med, Bratislava, SlovakiaCent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Rehak, Lubos
Wood, Kirkham B.
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MA Gen Hosp, Dept Orthopaed Surg, Boston, MA USA
Harvard Univ, Sch Med, Boston, MA USACent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Wood, Kirkham B.
Li, Guoan
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机构:
MA Gen Hosp, Dept Orthopaed Surg, Boston, MA USA
Harvard Univ, Sch Med, Boston, MA USACent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
Li, Guoan
Deng, Youwen
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Cent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthopaed Spine, Changsha 410008, Hunan Province, Peoples R China
机构:
Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Xia, Hong
Yin, QingShui
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Yin, QingShui
Ai, FuZhi
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Ai, FuZhi
Ma, XiangYang
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Ma, XiangYang
Wang, JianHua
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机构:
Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Wang, JianHua
Wu, ZengHui
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机构:
Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Wu, ZengHui
Zhang, Kai
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Zhang, Kai
Liu, JingFa
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China
Liu, JingFa
Xu, JunJie
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Liuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R ChinaLiuhuaqiao Hosp, Guangzhou Mil Command, Guangzhou Gen Hosp, Dept Orthoped, Guangzhou, Guangdong, Peoples R China