Finite element analysis of the influence of three-joint spinal complex on the change of the intervertebral disc bulge and height

被引：16

作者：

Szkoda-Poliszuk, Klaudia ^{[1
]}

Zak, Malgorzata ^{[1
]}

Pezowicz, Celina ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Dept Biomed Engn Mechatron & Theory Mech, Fac Mech Engn, Wroclaw, Poland

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING | 2018年 / 34卷 / 09期

关键词：

bulging disc; finite element method; intervertebral disc; thoracic spine segment; 3-joint complex; QUANTITATIVE 3-DIMENSIONAL ANATOMY; SAGITTAL PLANE LOADINGS; LUMBAR SPINE; MOTION SEGMENT; INTRADISCAL PRESSURE; IN-VITRO; VERTEBRAE; FRACTURE; DEGENERATION; BIOMECHANICS;

D O I：

10.1002/cnm.3107

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This study evaluated the changes of height and bulging occurring in individual layers of the annulus fibrosus of the intervertebral disc for 3 load scenarios (axial compression, flexion, and extension). The numerical model of a single motion segment of the thoracic spine was analysed for 2 different configurations, ie, for the model of a physiological segment and a segment with the posterior column removed. In the physiological segment, all annulus fibrosus layers decrease in height regardless of the applied load, bulging outside the intervertebral disc. Removal of the posterior column increases mobility and disrupts the load transfer system, with the lamellae bulging into the intervertebral disc.

引用

页数：13

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