Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis

Abstract In this study, we compared stress changes and quantity effect relationships from 3D finite element models of normal and degenerative lumbar segments. We further defined the mechanisms causing alterations in mechanical stability the control of normal and degenerative lumbar segments using tr...

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Autores principales:	Da-Ping Qin, Xiao-Gang Zhang, Ming Son, Hua Zhang, Lin-Zhong Cao, Wen-Tao Zhao, Zhi-Peng Wang, Shi-Wei Xu
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	Biological materials TCM FEM Lumbar motor segment Biomechanics Science Q Technology T
Acceso en línea:	https://doaj.org/article/72f82b51aeac43c4ade719336d6bb888
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id	oai:doaj.org-article:72f82b51aeac43c4ade719336d6bb888
record_format	dspace
institution	DOAJ
collection	DOAJ
language	EN
topic	Biological materials TCM FEM Lumbar motor segment Biomechanics Science Q Technology T
spellingShingle	Biological materials TCM FEM Lumbar motor segment Biomechanics Science Q Technology T Da-Ping Qin Xiao-Gang Zhang Ming Son Hua Zhang Lin-Zhong Cao Wen-Tao Zhao Zhi-Peng Wang Shi-Wei Xu Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
description	Abstract In this study, we compared stress changes and quantity effect relationships from 3D finite element models of normal and degenerative lumbar segments. We further defined the mechanisms causing alterations in mechanical stability the control of normal and degenerative lumbar segments using traditional Chinese medicine. The characteristics of the stress change and the quantity effect relationships of the three-dimensional finite element model of normal and degenerative lumbar segments were compared. The mechanism(s) leading to changes in mechanical stability and the intervention and balance between normal and degenerative lumbar segments of the traditional Chinese medicine was analyzed. The change trend of stress and strain was compared with the three dimensional finite element model under different motion states of normal lumbar vertebrae. A 3D-FEM of degenerative lumbar segments L4 ~ 5 of the human spine was established to simulate the physiological and pathological changes of the lumbar spine in response to flexion, extension, lateral bending and torsion. The stress changes in the normal and degenerative lumbar vertebrae were assessed through external force interventions and the response to TCM. Stress in the degenerative lumbar vertebrae changed according the external load. Stress and strain were compared in the FEM model under a range of motion states. Components of the human lumbar vertebrae including the cortical vertebrae, cancellous bone, endplates, fibrous rings, and facet articular processes were investigated. The elastic modulus of the nerve roots and the posterior marginal structures of the vertebral body increased with lumbar degeneration. Under stress trends in normal lumbar and different degrees of degenerative lumbar structures including cortical bone, loose bone, terminal plate, fiber ring, nucleus, small articular processes, nerve roots and posterior structures. In normal lumbar spine, 20%, 50%, 70% lumbar degeneration, 106 different lumbar anterior flexion 30 and posterior extension with different external forces showed that ANOVA F was between 3.623 and 11.381 and P changed between 0.001 and 0.05.It is clear that in the lumbar movement segments under different pressure intervention, the changes in the degree of degeneration are significantly different from each constituent structure, among which the trend of expected change between the constituent structures of the lumbar anterior flexion 30 is particularly obvious. The stress distribution in the intervertebral discs were influenced by TCM, and the space in the spinal canal enlarged so that nerve root stress decreased, vertebral body stress increased, and facet processes and pedicle stress in the posterior regions exceeded those of the anterior flexion position. The internal stress of the intervertebral disc increased in the flexion compared to the extension position, gradually increasing from top to bottom. The stress concentration point of the degenerative lumbar disc is significantly greater than the stress in the normal lumbar disc stress distribution area, and increases with the degree of degeneration. Compared with the load capacity of normal lumbar and mild (15% reduction), moderate (40% reduction) lumbar disc protrusion model in bending, extension, axial rotation, lateral bending, the results found that the load transmission of lumbar disc degeneration model to different degrees has also changed, so its compression stiffness, strain distribution and size are also different. TCM can improve and treat lumbar disc disease through its ability to regulate the mechanical environment of degenerative lumbar vertebrae. Compared to the FEM models of the lumbar vertebrae, lumbar degenerative changes could be assessed in response to alterations in the biomechanical environment. These findings provide a scientific basis for the popularization and application of TCM to prevent and treat spinal degenerative disease.
format	article
author	Da-Ping Qin Xiao-Gang Zhang Ming Son Hua Zhang Lin-Zhong Cao Wen-Tao Zhao Zhi-Peng Wang Shi-Wei Xu
author_facet	Da-Ping Qin Xiao-Gang Zhang Ming Son Hua Zhang Lin-Zhong Cao Wen-Tao Zhao Zhi-Peng Wang Shi-Wei Xu
author_sort	Da-Ping Qin
title	Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
title_short	Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
title_full	Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
title_fullStr	Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
title_full_unstemmed	Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
title_sort	effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis
publisher	Springer
publishDate	2021
url	https://doaj.org/article/72f82b51aeac43c4ade719336d6bb888
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spelling	oai:doaj.org-article:72f82b51aeac43c4ade719336d6bb8882021-11-21T12:12:38ZEffect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis10.1007/s42452-021-04857-12523-39632523-3971https://doaj.org/article/72f82b51aeac43c4ade719336d6bb8882021-11-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04857-1https://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract In this study, we compared stress changes and quantity effect relationships from 3D finite element models of normal and degenerative lumbar segments. We further defined the mechanisms causing alterations in mechanical stability the control of normal and degenerative lumbar segments using traditional Chinese medicine. The characteristics of the stress change and the quantity effect relationships of the three-dimensional finite element model of normal and degenerative lumbar segments were compared. The mechanism(s) leading to changes in mechanical stability and the intervention and balance between normal and degenerative lumbar segments of the traditional Chinese medicine was analyzed. The change trend of stress and strain was compared with the three dimensional finite element model under different motion states of normal lumbar vertebrae. A 3D-FEM of degenerative lumbar segments L4 ~ 5 of the human spine was established to simulate the physiological and pathological changes of the lumbar spine in response to flexion, extension, lateral bending and torsion. The stress changes in the normal and degenerative lumbar vertebrae were assessed through external force interventions and the response to TCM. Stress in the degenerative lumbar vertebrae changed according the external load. Stress and strain were compared in the FEM model under a range of motion states. Components of the human lumbar vertebrae including the cortical vertebrae, cancellous bone, endplates, fibrous rings, and facet articular processes were investigated. The elastic modulus of the nerve roots and the posterior marginal structures of the vertebral body increased with lumbar degeneration. Under stress trends in normal lumbar and different degrees of degenerative lumbar structures including cortical bone, loose bone, terminal plate, fiber ring, nucleus, small articular processes, nerve roots and posterior structures. In normal lumbar spine, 20%, 50%, 70% lumbar degeneration, 106 different lumbar anterior flexion 30 and posterior extension with different external forces showed that ANOVA F was between 3.623 and 11.381 and P changed between 0.001 and 0.05.It is clear that in the lumbar movement segments under different pressure intervention, the changes in the degree of degeneration are significantly different from each constituent structure, among which the trend of expected change between the constituent structures of the lumbar anterior flexion 30 is particularly obvious. The stress distribution in the intervertebral discs were influenced by TCM, and the space in the spinal canal enlarged so that nerve root stress decreased, vertebral body stress increased, and facet processes and pedicle stress in the posterior regions exceeded those of the anterior flexion position. The internal stress of the intervertebral disc increased in the flexion compared to the extension position, gradually increasing from top to bottom. The stress concentration point of the degenerative lumbar disc is significantly greater than the stress in the normal lumbar disc stress distribution area, and increases with the degree of degeneration. Compared with the load capacity of normal lumbar and mild (15% reduction), moderate (40% reduction) lumbar disc protrusion model in bending, extension, axial rotation, lateral bending, the results found that the load transmission of lumbar disc degeneration model to different degrees has also changed, so its compression stiffness, strain distribution and size are also different. TCM can improve and treat lumbar disc disease through its ability to regulate the mechanical environment of degenerative lumbar vertebrae. Compared to the FEM models of the lumbar vertebrae, lumbar degenerative changes could be assessed in response to alterations in the biomechanical environment. These findings provide a scientific basis for the popularization and application of TCM to prevent and treat spinal degenerative disease.Da-Ping QinXiao-Gang ZhangMing SonHua ZhangLin-Zhong CaoWen-Tao ZhaoZhi-Peng WangShi-Wei XuSpringerarticleBiological materialsTCMFEMLumbar motor segmentBiomechanicsScienceQTechnologyTENSN Applied Sciences, Vol 3, Iss 12, Pp 1-11 (2021)

Effect of different attributes of the mimic human lumbar spine biomechanics material structure change by finite element analysis

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