Three-dimensional finite element analysis on artificial cervical disc replacement for activities of lower cervical spine

VernacularTitle:人工颈椎间盘置换对下颈椎活动影响的三维有限元分析
Author: Yong SHEN ; Junming CAO ; Zhiyuan LI ; Yuchen ZHANG ; Wenyuan DING ; Dalong YANG
Publication Type:Journal Article
From: Chinese Journal of Tissue Engineering Research 2009;13(48):9579-9582
CountryChina
Language:Chinese
Abstract: This study was aimed to establish the three-dimensional model of C_(3-7) segment of lower cervical spine after artificial disc implantation, to analyze the movement of lower cervical spine after artificial disc replacement. According to CT films of 1 patient at 6 months after artificial disc implantation, three-dimensional finite element model that included Bryan~(TM) artificial cervical disc prosthesis of the lower cervical spine was established using finite element method, then introduced into Ansys 9.0, the vertebral cortical bone, cancellous bone and intervertebral disc were meshed and analyzed by using under several states such as flexion/extension, lateral bending and rotation, thus understanding their motion characteristics. By comparison with previous research findings, test results nearly accorded with or exhibited identical trend with previous study. The results suggest that, cervical disc replacement can basically guarantee the stability of lower cervical spine movement.