南方医科大学学报2017，Vol.37Issue(1)：49-55,74,8.DOI:10.3969/j.issn.1673-4254.2017.01.09
颈前路融合手术对相邻节段影响的有限元分析
Impact of anterior cervical fusion surgeries on adjacent segments：a finite element analysis
摘要
Abstract
Objective To investigate the changes in the range of motion (ROM) and stress of the intervertebral disc and facet joint of the adjacent segments following anterior cervical corpectomy and fusion (ACCF) and anterior cervical discectomy and fusion (ACDF) using finite element analysis. Methods A three-dimensional finite element model of the lower cervical vertebrae was constructed and validated by comparing the ROM of the finite element model against the published data. After the validation of successful modeling, finite element models of ACDF and ACCF were constructed. The ROM and the stress of the intervertebral disc and facet joint of the adjacent segments were compared between the intact lower cervical vertebrae and the cervical vertebrae after ACDF and ACCF. Results The ROM of the finite element model was consistent with the published data. The total ROM and the ROM of the fusion segments with ACDF and ACCF were significantly decreased compared with the intact cervical vertebrae. In the adjacent segments following ACDF and ACCF, the ROM the adjacent segments and the stress peak of the intervertebral disc and facet joint all increased obviously compared with those of intact cervical vertebrae. Conclusion After fusion surgeries, the total ROM of the cervical vertebrae decreases and the ROM of the adjacent segment increases. The stress peak of the intervertebral disc and facet joint of the adjacent segments also increases to significantly alter the physiological characteristics of the intact cervical vertebrae.关键词
有限元分析/颈椎融合/相邻节段退变/活动度/应力峰值Key words
finite element analysis/cervical fusion/adjacent segment degeneration/range of motion/stress peak引用本文复制引用
卢腾,张廷,董军,臧全金,杨宝辉,王栋,李浩鹏,贺西京..颈前路融合手术对相邻节段影响的有限元分析[J].南方医科大学学报,2017,37(1):49-55,74,8.基金项目
国家自然科学基金（81571209）；教育部博士点基金项目（20120201130009）Supported by National Natural Science Foundation of China (81571209) （81571209）
