The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults

Purpose: Using micro-CT and finite element analysis to establish regional variation microarchitectures and correlation with mechanical properties of cervical articular facet trabecular bone to predict cervical spine security and material properties. Methods: A total of 144 cervical articular process...

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Autores principales:	Huimei Feng, Yuan Ma, Stephen Jia Wang, Shaojie Zhang, Zhijun Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cervical articular process strength micro-CT regional microstructure finite element analysis mechanical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
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spelling	oai:doaj.org-article:16cb35796fbb42b889862d0982136e792021-11-11T17:59:22ZThe Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults10.3390/ma142164091996-1944https://doaj.org/article/16cb35796fbb42b889862d0982136e792021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6409https://doaj.org/toc/1996-1944Purpose: Using micro-CT and finite element analysis to establish regional variation microarchitectures and correlation with mechanical properties of cervical articular facet trabecular bone to predict cervical spine security and material properties. Methods: A total of 144 cervical articular processes (each articular was separate to four region of interest (ROI), superior-anterior (SA), superior-posterior (SP), inferior-anterior (IA), and inferior-posterior (IP) regions) specimens with a volume of 5 × 5 × 5 mm<sup>3</sup> were scanned by micro-CT, and allowable stress and other mechanical properties parameters in each region were calculated after mechanical testing, then the effectiveness was verified of finite element models by ABAQUS software. Results: Maximum and minimum values of C2–C7 articular processes and regions are C5 and C7 level, SA and SP regions for bone volume fraction (BV/TV) and trabecular thickness (Tb.Th), whose variation tendency is similar to the Young’s modulus, allowable stress, BMD, maximum force and strain. Between Young’s modulus and all microstructure parameters, especially between BV/TV, bone mineral density (BMD) and Tb.Th, had higher linear regression coefficients R<sup>2</sup> = 0.5676, 0.6382, 0.3535, respectively. BMD and yield strength, BV/TV, and allowable stress also had better regression coefficients, R<sup>2</sup> = 0.5227, 0.5259, 0.5426, respectively. Conclusions: The contribution of the microstructure and mechanical properties of the C2–C7 cervical spine to the movement of the cervical spine is different and has a good correlation and the effectiveness of the finite element model is also verified that we can correctly calculate the microstructure and mechanical properties of the cervical articular process to evaluate the stability and injury risk of cervical vertebrae by the established model.Huimei FengYuan MaStephen Jia WangShaojie ZhangZhijun LiMDPI AGarticlecervical articular process strengthmicro-CTregional microstructurefinite element analysismechanical modelTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6409, p 6409 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cervical articular process strength micro-CT regional microstructure finite element analysis mechanical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	cervical articular process strength micro-CT regional microstructure finite element analysis mechanical model Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Huimei Feng Yuan Ma Stephen Jia Wang Shaojie Zhang Zhijun Li The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
description	Purpose: Using micro-CT and finite element analysis to establish regional variation microarchitectures and correlation with mechanical properties of cervical articular facet trabecular bone to predict cervical spine security and material properties. Methods: A total of 144 cervical articular processes (each articular was separate to four region of interest (ROI), superior-anterior (SA), superior-posterior (SP), inferior-anterior (IA), and inferior-posterior (IP) regions) specimens with a volume of 5 × 5 × 5 mm<sup>3</sup> were scanned by micro-CT, and allowable stress and other mechanical properties parameters in each region were calculated after mechanical testing, then the effectiveness was verified of finite element models by ABAQUS software. Results: Maximum and minimum values of C2–C7 articular processes and regions are C5 and C7 level, SA and SP regions for bone volume fraction (BV/TV) and trabecular thickness (Tb.Th), whose variation tendency is similar to the Young’s modulus, allowable stress, BMD, maximum force and strain. Between Young’s modulus and all microstructure parameters, especially between BV/TV, bone mineral density (BMD) and Tb.Th, had higher linear regression coefficients R<sup>2</sup> = 0.5676, 0.6382, 0.3535, respectively. BMD and yield strength, BV/TV, and allowable stress also had better regression coefficients, R<sup>2</sup> = 0.5227, 0.5259, 0.5426, respectively. Conclusions: The contribution of the microstructure and mechanical properties of the C2–C7 cervical spine to the movement of the cervical spine is different and has a good correlation and the effectiveness of the finite element model is also verified that we can correctly calculate the microstructure and mechanical properties of the cervical articular process to evaluate the stability and injury risk of cervical vertebrae by the established model.
format	article
author	Huimei Feng Yuan Ma Stephen Jia Wang Shaojie Zhang Zhijun Li
author_facet	Huimei Feng Yuan Ma Stephen Jia Wang Shaojie Zhang Zhijun Li
author_sort	Huimei Feng
title	The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
title_short	The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
title_full	The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
title_fullStr	The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
title_full_unstemmed	The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults
title_sort	correlation of regional microstructure and mechanics of the cervical articular process in adults
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/16cb35796fbb42b889862d0982136e79
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The Correlation of Regional Microstructure and Mechanics of the Cervical Articular Process in Adults

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