张振军,李文钊,李慧,廖振华,孟庆铸,孙大为,孙学君,刘伟强.多孔钛腰椎融合器在不同入路椎间融合术中的生物力学性能[J].医用生物力学,2019,34(3):243-250
多孔钛腰椎融合器在不同入路椎间融合术中的生物力学性能
Biomechanical Properties of Porous Titanium Cages for Different Lumbar Interbody Fusion Surgeries
投稿时间:2018-04-19  修订日期:2018-06-11
DOI:
中文关键词:  多孔融合器  前路腰椎椎间融合术  后路腰椎椎间融合术  经椎间孔腰椎椎间融合术  直接外侧椎间融合术  生物力学
英文关键词:porous cages  anterior lumbar interbody fusion (ALIF)  posterior lumbar interbody fusion (PLIF)  transforaminal lumbar interbody fusion (TLIF)  direct lateral interbody fusion (DLIF)  biomechanics
基金项目:国家重点研发计划课题(2016YFC1102002)
作者单位
张振军 清华大学 机械工程系
深圳清华大学研究院 生物医用材料及植入器械重点实验室 
李文钊 北京纳通科技集团有限公司 北京市医用内植物工程技术研究中心 
李慧 北京纳通科技集团有限公司 北京市医用内植物工程技术研究中心 
廖振华 深圳清华大学研究院 生物医用材料及植入器械重点实验室 
孟庆铸 辽宁省海城市中心医院 
孙大为 辽宁省海城市中心医院 
孙学君 北京盈暖利和科技有限公司 
刘伟强 清华大学 机械工程系
深圳清华大学研究院 生物医用材料及植入器械重点实验室 
摘要点击次数: 472
全文下载次数: 0
中文摘要:
      目的 探究采用多孔融合器在不同入路腰椎融合术的生物力学性能。方法 建立完整腰椎三维有限模型,通过实验方法 获得多孔材料的力学参数。针对多孔融合器在前路腰椎椎间融合术(anterior lumbar interbody fusion, ALIF)、后路腰椎椎间融合术(posterior lumbar interbody fusion, PLIF)、经椎间孔腰椎椎间融合术(transforaminal lumbar interbody fusion, TLIF)和直接外侧椎体间融合术(direct lateral interbody fusion, DLIF)中的生物力学性能进行对比研究。结果 在施行椎间融合术后,DLIF、ALIF模型预测的活动度(range of motion, ROM)和融合器应力明显低于PLIF、TLIF模型,DLIF、ALIF和TLIF模型预测的终板应力明显低于PILF模型。结论 采用多孔融合器的DLIF模型显示出较优的生物力学性能,而且在临床过程中操作简单适于微创术式。DLIF手术具有更优的综合性能。
英文摘要:
      Objective To study the biomechanical properties of porous titanium cages used for different lumbar interbody fusion surgeries. Methods The three-dimensional (3D) finite element model of the lumbar spine was constructed, and mechanical parameters of porous materials were obtained by mechanical test. The biomechanical properties of porous titanium cages in anterior lumbar interbody fusion (ALIF), posterior lumbar interbody fusion (PLIF), transforaminal lumbar interbody fusion (TLIF), direct lateral interbody fusion (DLIF) were compared. Results After lumbar interbody surgery, the predicted range of motion (ROM) and the maximum stress in cage of DLIF model and ALIF model were substantially lower than those of PLIF model and TLIF model. The maximum stress in endplate of DLIF model, ALIF model and TLIF model were obviously lower than that of PLIF model. Conclusions DLIF with the porous cage showed advantages in biomechanical properties, which was simple to operate and suitable for minimally invasive surgery in clinical practice. DLIF performed the superior comprehensive properties.
查看全文  查看/发表评论  下载PDF阅读器
关闭
分享按钮 function PdfOpen(url){ var win="toolbar=no,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes"; window.open(url,"",win); } function openWin(url,w,h){ var win="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + w + ",height=" + h; controlWindow=window.open(url,"",win); } &et=10482A062A28170B33B8C8122CB64A17DDD2B6945C1033C25F4FE1329DD678276F15453CFAE3DB9152CF6AC2929E5449F996977E767C8BCEFF2E341D7E420B3F36262430CD959271737DBDE511C9BF41C1476CA1D02887C83CB7B49728808E2E03ACFCCC315F5D14&pcid=A9DB1C13C87CE289EA38239A9433C9DC&cid=0AAA7D21481497F8&jid=8462F39F60647D9390E6DB1DC3C345BD&yid=B6351343F4791CA3&aid=&vid=&iid=38B194292C032A66&sid=B78CD622C1934236&eid=1D01216AD76577EC&fileno=201903004&flag=1&is_more=0"> var my_pcid="A9DB1C13C87CE289EA38239A9433C9DC"; var my_cid="0AAA7D21481497F8"; var my_jid="8462F39F60647D9390E6DB1DC3C345BD"; var my_yid="B6351343F4791CA3"; var my_aid="";