中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (27): 4277-4282.doi: 10.12307/2023.499

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

斜扳手法对人体腰椎间盘退变后三关节复合体的力学效应

许光明1,2,梁梓扬3,王宏波2,张  震2,肖庆华2,杨吉勇4,林晓生2   

  1. 1广州中医药大学,广东省广州市   510000;2深圳市中西医结合医院,广东省深圳市   518000;3中南大学湘雅二医院,湖南省长沙市   410011;4 深圳市坪山区中医院,广东省深圳市   518000
  • 收稿日期:2022-05-13 接受日期:2022-07-23 出版日期:2023-09-28 发布日期:2022-11-07
  • 通讯作者: 林晓生,博士,教授,博士生导师,主任医师,深圳市中西医结合医院,广东省深圳市 518000
  • 作者简介:许光明,男,1991年生,广东省潮州市人,汉族,广州中医药大学在读博士,主要从事中西医结合防治骨质疏松症及骨关节疾病研究。
  • 基金资助:
    长沙市自然科学基金(61825),项目负责人:梁梓扬

Mechanical effect of oblique-pulling manipulation on triarticular complex after human lumbar intervertebral disc degeneration

Xu Guangming1, 2, Liang Ziyang3, Wang Hongbo2, Zhang Zhen2, Xiao Qinghua2, Yang Jiyong4, Lin Xiaosheng2   

  1. 1Guangzhou University of Traditional Chinese Medicine, Guangzhou 510000, Guangdong Province, China; 2Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen 518000, Guangdong Province, China; 3Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China; 4Shenzhen Pingshan Hospital of Traditional Chinese Medicine, Shenzhen 518000, Guangdong Province, China
  • Received:2022-05-13 Accepted:2022-07-23 Online:2023-09-28 Published:2022-11-07
  • Contact: Lin Xiaosheng, MD, Professor, Doctoral supervisor, Chief physician, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen 518000, Guangdong Province, China
  • About author:Xu Guangming, Doctoral candidate, Guangzhou University of Traditional Chinese Medicine, Guangzhou 510000, Guangdong Province, China; Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen 518000, Guangdong Province, China
  • Supported by:
    Natural Science Foundation of Changsha, No. 61825 (to LZY)

摘要:


文题释义:

腰椎三关节复合体:腰椎的椎间盘和小关节突关节是腰椎的运动节段,两者共同组成腰椎三关节复合体,为人体提供腰椎的生理运动,且限制腰椎的活动幅度而维持脊柱的稳定性。
腰椎间盘退变:人体腰椎间盘是由纤维环、髓核及软骨终板三者构成,由于其类似关节的形式位于两个椎体之间,也被称为椎间关节。椎间盘能限制腰椎的过度运动,且能缓冲人体重力及运动负荷的作用,对于维持腰椎的稳定性起到重要作用。由于人体日常活动中,对于腰椎间盘的负荷及力学作用更易损伤椎间盘的组织结构,且由于其血供较少,损伤后的恢复难度较大,进而导致椎间盘退变的发生。

背景:斜扳法治疗腰椎间盘退变的生物力学研究主要集中于纤维环、髓核及骨性结构的应力及位移分析,对腰椎间盘退变后三关节复合体的力学研究目前较少见。
目的:通过有限元分析斜扳手法对腰椎间盘退变后三关节复合体生物力学的影响。
方法:将人体腰部CT图像导入到Mimics、Geomagic studio、solidworks、Hypermesh等有限元软件,构建L4、L5椎体、椎间盘、韧带、关节囊等有限元模型。根据腰椎间盘退变材料属性的不同分别给予赋值,建立正常及轻度、中度退变腰椎模型,分析斜扳法对不同退变程度腰椎间盘三关节复合体的力学分布影响。
结果与结论:①斜扳手法作用后,正常及轻度、中度退变椎间盘的最大应力分别为0.78,3.21,3.94 MPa,而对应的椎间盘最大位移逐渐减少;②斜扳手法作用后,正常及轻度、中度退变椎间盘的纤维环应力逐渐增大,中度退变椎间盘的纤维环应力明显增加;正常及轻度、中度退变椎间盘髓核内的最大应力分别为0.87,0.56,0.44 MPa,关节囊的最大拉伸高度分别为1.74,2.48,3.10 mm;③结果表明,正常椎间盘能减少腰椎三关节复合体的应力加载,起到保护作用;斜扳手法对中度退变椎间盘的操作是安全的,其最大应力值不会造成腰椎组织的破坏。

https://orcid.org/0000-0001-8533-5317 (许光明) 

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

关键词: 腰椎间盘退变, 斜扳法, 有限元, 三关节复合体, 力学效应, 腰椎

Abstract: BACKGROUND: Biomechanical studies on the treatment of lumbar intervertebral disc degeneration by oblique-pulling manipulation mainly focus on the stress and displacement analysis of the annulus fibrosus, nucleus pulposus and bony structure, while mechanical studies on the three-articular complex after lumbar intervertebral disc degeneration have not been found.  
OBJECTIVE: To analyze the biomechanical dynamic changes of the three-joint complex after lumbar intervertebral disc degeneration by oblique-pulling manipulation with finite element method.
METHODS: CT images were imported to Mimics, Geomagic Studio, SolidWorks, Hypermesh and other finite element software to construct L4 and L5 vertebral body, intervertebral disc, ligament, joint capsule and other finite element models. According to the different material properties of lumbar disc degeneration, the values were assigned to establish normal, mild and moderate degeneration models. The mechanical distribution differences of the three-joint complex with different degrees of lumbar disc degeneration were analyzed by oblique-pulling manipulation.  
RESULTS AND CONCLUSION: (1) After oblique-pulling manipulation, the maximum stresses of normal, mild and moderate degenerative intervertebral discs were 0.78, 3.21, and 3.94 MPa, respectively, while the corresponding maximum displacement of the intervertebral disc gradually decreased. (2) After oblique-pulling manipulation, the annulus fibrosus stress of normal, mild and moderate degenerative intervertebral discs increased gradually, and the annulus fibrosus stress of moderate degenerative intervertebral discs increased significantly. The maximum stresses in the nucleus pulposus of normal, mild and moderate degenerative intervertebral discs were 0.87, 0.56, and 0.44 MPa, and the maximum stretched heights of the joint capsule were 1.74, 2.48, and 3.10 mm, respectively. (3) The results suggest that the normal intervertebral disc without degeneration can reduce the stress loading of the lumbar triarticular complex and play a protective role. Oblique-pulling manipulation of moderate degenerative intervertebral disc is safe, and its maximum stress will not cause damage to lumbar tissue.

Key words: lumbar intervertebral disc degeneration, oblique-pulling manipulation, finite element, triarticular complex, mechanical effect, lumbar spine

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