新型翼状颈椎间融合器植入颈椎即刻稳定性的生物力学评价  

Biomechanical Evaluation on the Primary Stability of Cervical Spine Instrumented with Aliform Type Cervical Intervertebral Fusion Cage

作　　者：张健[1] 樊瑜波[2] 

机构地区：[1]四川大学建筑与环境学院生物力学工程实验室,成都610065 [2]北京航空航天大学生物工程系,北京100083

出　　处：《生物医学工程学杂志》2007年第3期562-567,共6页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(30370376);教育部新世纪人才计划资助

摘　　要：用三维有限元法测试自行设计的翼状颈椎间融合器(ACIFC)的生物力学性能,探讨其用于颈椎椎间前路融合的可行性。在有限元分析软件ABAQUS中模拟植入ACIFC的颈椎前路椎体融合术,进行术后即刻稳定性的生物力学分析。计算出活动度(ROM),分析其力学性能,并与相关实验数据进行了比较性分析。椎间融合器植入后,颈椎活动度下降了25%,与植入前有显著性差异(P<0.05)。同时,ACIFC有较好的抗拔出性能和具备较好的植骨融合环境。可以证实ACIFC能为颈椎椎间融合提供足够的初始生物力学稳定性。We sought to test the primary stability offered by aliform cervical intervertebral fusion cage （ACIFC） and to evaluate its biomechanical effect. The anterior cervical spinal fusion procedures with ACIFC were simulated in ABAQUS software. The angular range of motion（ROM） and the stress distribution were quantified to assess the primary stability and the biomechanical relation of the cervical spines. The ROM decreased by 25 % and when it was compared with the noninstrumented,a significant difference was seen （P〈0.01）. As the ACIFC has the function of pullout resistance and provides good environment for spinal fusion, it can supply enough primary stability for the anterior cervical spinal fusion.

关 键 词：翼状颈椎融合器 生物力学 颈椎 

分 类 号：R687.3[医药卫生—骨科学] R318.01[医药卫生—外科学]