Biomechanical comparison of posterior intermediate screw fixation techniques with hybrid monoaxial and polyaxial pedicle screws in the treatment of thoracolumbar burst fracture: a finite element study
文献类型：期刊论文
| 作者 | Li CQ(李长青)1; Liu J(刘军)5 ; Wang HW(王洪伟)2,3,4,5; Liu, Huan6; Zhou Y(周跃)1; Xiang LB(项良碧)5
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| 刊名 | JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
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| 出版日期 | 2019 |
| 卷号 | 14页码:1-8 |
| 关键词 | Biomechanics Thoracolumbar fracture Hybrid Monoaxial pedicle screw Polyaxial pedicle screw |
| ISSN号 | 1749-799X |
| 产权排序 | 2 |
| 英文摘要 | BackgroundTo compare the biomechanical characteristics of different posterior intermediate screw fixation techniques (ISFTs) with hybrid monoaxial pedicle screws (Mps) and polyaxial pedicle screws (Pps) used in thoracolumbar burst fractures.MethodsFixation techniques are compared with regard to the von Mises stress (VMS) of the instrumentations and intradiscal pressures (IDPs) of the adjacent segments by finite element method (FEM).ResultsThe redistributed ROM of the fixation models with Pps fixed at the lowest segment was twice of the other fixation models in flexion and extension. The largest value of maximal VMS of a pedicle screw was located at the lowest pedicle screws when Mps are fixed at the lowest segment. The largest value of maximal VMS of the rods was decreased when more Pps are fixed at the models. Maximal IDPs of the upper adjacent segments were all larger than those of the lower adjacent segments. The maximal IDPs of the fixation model with MPs fixed at the lowest segment were larger than the other fixation models in flexion and extension.ConclusionsPolyaxial pedicle screws could be placed at the upper or the median segment for the facilitated efficient application of the connecting rod. We should focus on the adjacent segmental degeneration especially the upper adjacent segment in the fixation model with Mps fixed at the lowest segment. |
| WOS关键词 | INTERBODY FUSION ; LEVEL ; ADJACENT ; INSTRUMENTATION ; VERTEBRA ; INCLUSION ; REDUCTION ; SEGMENTS ; HEIGHT |
| 资助项目 | Foundation of the Sichuan Province Applied Basic Research[2018JY0402] ; Liaoning Province Doctor Startup Fund[201601389] ; State Key Laboratory of Robotics[2017-O01] ; Open Project Program of the State Key Lab of CAD CG[A1718] ; Open Project Program of the State Key Laboratory of Trauma, Burn and Combined Injury[SKLKF201705] ; National Natural Science Foundation of China[11602063] ; State Key Laboratory of Materials Processing and Die & Mould Technology[P2018-011] |
| WOS研究方向 | Orthopedics |
| 语种 | 英语 |
| WOS记录号 | WOS:000467547000002 |
| 资助机构 | Foundation of the Sichuan Province Applied Basic Research ; Liaoning Province Doctor Startup Fund ; State Key Laboratory of Robotics ; Open Project Program of the State Key Lab of CAD CG ; Open Project Program of the State Key Laboratory of Trauma, Burn and Combined Injury ; National Natural Science Foundation of China ; State Key Laboratory of Materials Processing and Die & Mould Technology |
| 源URL | [http://ir.sia.cn/handle/173321/24728]  |
| 专题 | 沈阳自动化研究所_机器人学研究室 |
| 通讯作者 | Wang HW(王洪伟) |
| 作者单位 | 1.Department of Orthopedics, Xinqiao Hospital, The Third Military Medical University, Chongqing, 400037 China 2.State Key Laboratory of Trauma, Burn and Combined Injury, The Third Military Medical University, Chongqing, 400038 China 3.State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074 Hubei China 4.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Science, Shenyang, 110016 Liaoning China 5.Department of Orthopedics, General Hospital of Northern Theater Command of Chinese PLA, Shenyang, 110016 Liaoning China 6.Department of Orthopedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000 China |
| 推荐引用方式 GB/T 7714 | Li CQ,Liu J,Wang HW,et al. Biomechanical comparison of posterior intermediate screw fixation techniques with hybrid monoaxial and polyaxial pedicle screws in the treatment of thoracolumbar burst fracture: a finite element study[J]. JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH,2019,14:1-8. |
| APA | Li CQ,Liu J,Wang HW,Liu, Huan,Zhou Y,&Xiang LB.(2019).Biomechanical comparison of posterior intermediate screw fixation techniques with hybrid monoaxial and polyaxial pedicle screws in the treatment of thoracolumbar burst fracture: a finite element study.JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH,14,1-8. |
| MLA | Li CQ,et al."Biomechanical comparison of posterior intermediate screw fixation techniques with hybrid monoaxial and polyaxial pedicle screws in the treatment of thoracolumbar burst fracture: a finite element study".JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH 14(2019):1-8. |
入库方式： OAI收割
来源：沈阳自动化研究所
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