小牛颈椎椎体次全切除应用不同内置物重建后的极限力学测试  

The utmost load and displacement of different implants in bovine cervical spinal subcorpectomy model

作　　者：王良意[1] 陈德玉[1] 王新伟[1] 郭永飞[1] 徐建伟[1] 王以进[1] 

机构地区：[1]第二军医大学附属长征医院骨科,上海市200003

出　　处：《中国脊柱脊髓杂志》2005年第2期106-108,共3页Chinese Journal of Spine and Spinal Cord

基　　金：上海市科学技术委员会资助项目(024419126)

摘　　要：目的:测试小牛颈椎椎体次全切除不同内置物重建后标本的极限力学性能。方法:32具小牛颈椎标本随机分成颈前路可调式融合固定器组(AC-AFF)、钢板髂骨组(AI)、钢板钛网组(AT)及对照组(未行手术组),测量每组标本的最大载荷和最大位移。结果:正常小牛颈椎标本的极限载荷最高为(1182±12.24)N,AI组的承载能力最差为(973±9.02)N;AC-AFF组极限载荷为(1060±11.40)N,高于AT组与AI组(P<0.01)。4组间的极限位移间无显著性差异(P>0.05)结论:AC-AFF对抗破坏载荷的能力强于前路钢板。Objective:To investigate the utmost load and displacement of different implants in bovine cervical spinal subcorpectomy model.Method:Thirty-two bovine cervical spine specimens were randomly divided into four groups,which were anterior cervical-adjustable fusion fixator(AC-AFF group),iliac graft(AI group),titanium mesh(AT group) with supplemented anterior cervical plate and control group. The utmost load and displacement of axial compression were tested respectively.Result:The utmost load and displacement of the control group was the highest while the iliac group was the lowest.Meanwhile,the utmost load and displacement of the AC-AFF group was higher than that of the AI group and AT group.Conclusion:The ability of anti-destruction of the AC-AFF is better than that of the anterior cervical plate fixation.

关 键 词：颈椎 脊柱融合术 内同定 生物力学 

分 类 号：R318.01[医药卫生—生物医学工程]