中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (43): 8147-8150.doi: 10.3969/j.issn.1673-8225.2011.43.040

• 骨与关节学术探讨 academic discussion of the bone and joint • 上一篇    下一篇

钉棒系统置入内固定治疗腰椎骨折的力学分析

刘  钢   

  1. 贵阳医学院附属医院急诊创伤外科，贵州省贵阳市  550004
  • 收稿日期:2011-08-10 修回日期:2011-09-13 出版日期:2011-10-22 发布日期:2011-10-22
  • 作者简介:刘钢★，男，贵州省沿河土家族自治县人，土家族，2004年遵义医学院毕业，硕士，副教授，主要从事骨创伤的研究。 lgczhappy@163.com

Screw-rod fixation system for lumbar fractures: A mechanical analysis

Liu Gang   

  1. Department of Traumatic Surgery, Affiliated Hospital of Guiyang Medical College, Guiyang  550004, Guizhou Province, China
  • Received:2011-08-10 Revised:2011-09-13 Online:2011-10-22 Published:2011-10-22
  • About author:Liu Gang★, Master, Associate professor, Department of Traumatic Surgery, Affiliated Hospital of Guiyang Medical College, Guiyang 550004, Guizhou Province, China lgczhappy@163.com

PDF

533

被引次数

7

摘要：

背景：经后路椎弓根螺钉系统内固定是目前腰椎骨折的最常见的手术治疗方式，具有手术操作简便，耗时少，损伤小，出血少等优点。
目的：分析不同因素下椎弓根钉棒内固定系统的力学特性。
方法：由作者检索1990/2010 PubMed数据及万方数据库有关腰椎骨折治疗、钉棒内固定系统应用及其力学参数、强度、疲劳、稳定和有限元研究等相关文章。
结果与结论：椎弓根钉棒内固定系统能有效恢复椎体高度和弧度，纠正畸形和维持脊柱的三维位置。各种内固定系统的设计、置入角度和深度以及所固定节段的数目均表现出不同的力学特性，只要掌握了上述特性，选择合适的方法，并固定合适的运动单元，就能获得最佳的固定。

关键词: 钉棒系统, 腰椎骨折, 椎弓根, 力学分析, 医学植入物

Abstract:

BACKGROUND: Posterior pedicle screw fixation system is the most common treatment for lumbar fractures, characterized as easy operation, short time, small damage and little bleeding.
OBJECTIVE: To analyze the mechanical properties of pedicle screw-rod fixation system under different conditions.
METHODS: The author retrieved PubMed and Wanfang databases (1990/2010) for articles about lumbar fracture treatment, clinical application, mechanical parameters, intensity, fatigue and safety of pedicle screw-rod fixation system as well as relevant finite element studies.
RESULTS AND CONCLUSION: Pedicle screw-rod fixation system can effectively restore vertebral body height and curvature to correct deformity and maintain the three-dimensional position of the spine. The design, implant angle, and implant depth of the different implants as well as the number of fixed segments result in different mechanical properties. We can get the best fixation effect based on the understanding of these properties, proper implanting method and fixation of appropriate units.

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