中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (31): 5060-5065.doi: 10.3969/j.issn.2095-4344.2017.31.024

• 骨与关节综述 bone and joint review • 上一篇    下一篇

有限元分析胸腰段脊柱骨折经伤椎置钉的固定

郝申申,赵如元,刘志斌,王博文,曹心浩,薛小伟   

  1. 延安大学附属医院骨科,陕西省延安市 716000
  • 出版日期:2017-11-08 发布日期:2017-12-01
  • 通讯作者: 刘志斌,主任医师,延安大学附属医院骨科,陕西省延安市 716000
  • 作者简介:郝申申,男,1988年生,河南省宝丰县人,汉族,延安大学在读硕士,主要从事关节与脊柱方面研究。
  • 基金资助:

    陕西省社会发展科技攻关项目(2015SF115);延安市科技惠民计划项目(2016HM-10-03)

Transpedicular screw fixation for thoracolumbar fracture based on finite element analysis  

Hao Shen-shen, Zhao Ru-yuan, Liu Zhi-bin, Wang Bo-wen, Cao Xin-hao, Xue Xiao-wei   

  1. Department of Orthopedics, Affiliated Hospital of Yan’an University, Yan’an 716000, Shaanxi Province, China
  • Online:2017-11-08 Published:2017-12-01
  • Contact: Liu Zhi-bin, Chief physician, Department of Orthopedics, Affiliated Hospital of Yan’an University, Yan’an 716000, Shaanxi Province, China
  • About author:Hao Shen-shen, Studying for master’s degree, Department of Orthopedics, Affiliated Hospital of Yan’ an University, Yan ’an 716000, Shaanxi Province, China
  • Supported by:

    the Social Development and Technology Research & Development Project of Shaanxi Province, No. 2015SF115; the Technology Huimin Project of Yan’an, No. 2016HM-10-03.

摘要:

文章快速阅读:

 
文题释义:
有限元分析法:是数值计算中的一种离散化方法,是矩阵方法在结构力学和弹性力学等领域中的发展和应用。将一个由无数个质点组成且有无限个自由度的连续体,近似为由有限个且按一定方式相互联结在一起的单元所组成的集合体,来模拟或逼近原来的物体。从而将一个连续的无限自由度问题简化为离散的有限自由度问题进行求解的分析方法。
经伤椎置钉固定:作为传统的跨伤椎置钉固定的补充与发展,一般认为由于其增加了伤椎螺钉固定可以提供更加稳定的生物力学性能和更好术后维持固定效果。但经伤椎置钉固定也因伤椎置钉而相应地缩小了其应用的适应证。
 
摘要
背景:胸腰段脊柱骨折是临床上常见的脊柱损伤,骨折破坏脊柱的稳定性,轻者压迫脊髓、神经,重者可造成畸形、瘫痪。临床上对于胸腰段脊柱骨折的诊断和治疗尚存在部分争议。
目的:对胸腰段脊柱骨折损伤机制的有限元分析、分型发展现状、经伤椎置钉固定应用等方面进行概括。
方法:由第一作者应用计算机检索中国期刊全文数据库(CNKI)、PubMed数据库2000年1月至2016年12月相关文献,在标题、摘要、关键词中以“有限元分析、胸腰段脊柱骨折、经伤椎固定”或“finite element method、thoracolumbar spine fracture、transpedicular screw fixation”为检索词进行检索。
结果与结论:①有限元分析法可以很好地模拟胸腰段脊柱骨折的发生机制,为临床研究胸腰段脊柱骨折的发生发展及治疗提供参考;②胸腰段脊柱骨折的分型有利于临床治疗方法的选择和预后的判断;③经伤椎置钉固定相较于跨伤椎置钉固定无论在生物力学稳定性方面,还是在维持术后矫正效果方面,均具有优势;④现实中胸腰段脊柱骨折的分型较多、程度差异、软组织损伤程度不同,目前条件下完全模拟实际情况尚难以做到;⑤有限元分析法学习曲线长、建模耗时长、分析数据运算量大,因此临床应用受到一定的限制。
 
中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0001-8017-0963(刘志斌)

关键词: 骨科植入物, 脊柱植入物, 胸腰段脊柱骨折, 有限元分析, 骨折分型, 经伤椎固定

Abstract:

BACKGROUND: Thoracolumbar fracture is commonly seen in spinal injuries, which causes loss of stability of the spine, as well as spinal cord and nerve compression, even deformity and paralysis. The diagnosis and treatment of thoracolumbar fracture remain controversial.

OBJECTIVE: To summarize the mechanism of thoracolumbar fracture based on finite element method, its classification and transpedicular screw fixation.
METHODS: The first author retrieved CNKI and PubMed databases for the relevant literature published between January 2000 and December 2016. The keywords were “finite element method, thoracolumbar spine fracture, transpedicular screw fixation” in Chinese and English, respectively.
RESULTS AND CONCLUSION: (1) The finite element analysis method can simulate the mechanism of thoracolumbar fracture and provides a reference for the studies on the occurrence, development and treatment of thoracolumbar fracture. (2) The classification of thoracolumbar fracture is beneficial for planning a rational treatment strategy and evaluating prognosis. (3) Compared with the traditional screw fixation, the transpedicular screw fixation holds advantages in biomechanical stability and postoperative correction effect. (4) There are various classifications for thoracolumbar fracture; differences in severity and cartilage injury are difficult to simulate completely. (5) The finite element analysis method shows certain application limitations due to long learning curve and modeling time as well as complicated calculations.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Spinal Fractures, Finite Element Analysis, Internal Fixators

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