中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (22): 4000-4004.doi: 10.3969/j.issn.1673-8225.2010.22.003

• 数字化骨科 digital orthopedics • 上一篇    下一篇

三维有限元腰椎节段模型上模拟拨伸按压手法的生物力学分析

张晓刚，董建华，杨学峰，李具宝，李延红   

  1. 甘肃中医学院附属医院骨一科，甘肃省兰州市    73002
  • 出版日期:2010-05-28 发布日期:2010-05-28
  • 作者简介: 张晓刚，男，1960年生，陕西省延安市人，汉族，1984年甘肃中医学院毕业，主任医师，主要从事骨关节疾患和创伤的诊治研究。 zxg0525@163.com
  • 基金资助:

    甘肃省中医药管理局2008年立项课题。

Biomechanical analysis of simulating pulling, extension and compression on the three-dimensional finite element model of lumbar segments

Zhang Xiao-gang, Dong Jian-hua, Yang Xue-feng, Li Ju-bao, Li Yan-hong   

  1. First Department of Orthopedics, Affiliated Hospital of Gansu College of Traditional Chinese Medicine, Lanzhou   730020, Gansu Province, China
  • Online:2010-05-28 Published:2010-05-28
  • About author:Zhang Xiao-gang, Chief physician, First Department of Orthopedics, Affiliated Hospital of Gansu College of Traditional Chinese Medicine, Lanzhou 730020, Gansu Province, China zxg0525@163.com
  • Supported by:

    a Grant from Traditional Chinese Medicine Bureau of Gansu Province in 2008

PDF

559

被引次数

47

摘要：

背景：应用计算机技术和有限元法对传统中医推拿手法进行研究，给传统的中医推拿手法研究注入了活力。
目的：分析手法治疗腰椎间盘突出症的机制，探求符合生物力学的治疗手法，明确手法治疗腰椎疾患的安全范围。
方法：选择成年无腰椎疾患的男性志愿者，年龄28岁，身高170 cm，体质量60 kg。采用CT对L3~S1进行扫描，利用ADINA5.0构件软件，并赋予不同组织不同的材料属性，建立腰椎有限元模型，设定腰椎水平位、后伸10°位、前屈30°位状态，加载拔伸按压载荷，观察腰椎间盘、髓核和纤维环的受力改变情况。
结果与结论：在拔伸按压状态下，腰椎前屈30°椎间盘组织的位移应变和应力变化最明显，提示在设定的条件下手法治疗腰椎疾患是安全的。

关键词: 拔伸按压, 三维有限元, 手法, 椎间盘, 生物力学, 数字化骨科技术

Abstract:

BACKGROUND: Computer and finite element methods have been used to explore manipulation treatment.
OBJECTIVE: To explore the mechanism of manipulation treatment of lumbar intervertebral disc protrusion, investigate a way consistent with the treatment of biomechanics and confirm the safety scope of the manipulation of lumbar disorders.
METHODS: One adult male volunteer with no spinal disorders, aged 28 years, 170 cm height and 60 kg body mass was subjected to CT scanning of the L3-S1 using Adina component-based software, and assigned different materials attributes to different tissues to establish lumbar spine finite element model. The level of lumbar spine position, extension 10 °, flexion 30 ° were set and subjected to pulling, extension and compression loads to observe force change of lumbar intervertebral disc, nucleus pulposus and annulus fibrosus.
RESULTS AND CONCLUSION: Under pulling, extension and compression states, the intervertebral disc displayed the most obvious displacement, strain and stress changes at lumbar flexion 30 °, suggesting treatment of lumbar spinal disorders is safe in certain conditions.

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