IMECH-IR  > 高温气体动力学国家重点实验室
脊柱椎弓根螺钉应用的生物力学特征
Alternative TitleBiomechanical study of spinal pedicle screws
李现令; 李现今; 张学军; 鲁守彦; 赵萍; 李承鑫; 孙琳; 张昆亚; 张钦明
Source Publication中国组织工程研究与临床康复
2011-07-23
Volume15Issue:30Pages:5640-5645
ISSN1673-8225
Abstract背景:椎弓根螺钉内固定经过不断的发展和完善,生物力学理论在脊柱内固定器方面也有了很大进展。目的:对脊柱椎弓根螺钉应用的生物力学研究进行综述。方法:应用计算机检索1986-01/2010-10 CNKI和Pubmed数据库,在标题和摘要中以“椎弓根螺钉,生物力学”或“Pedicle Screw,Biomechanics”为检索词进行检索。选择文章内容与椎弓根螺钉的生物力学有关者,同一领域文献则选择近期发表或发表在权威杂志文章。最终入选49篇文献进行综述。结果与结论:在椎弓根螺钉的发展过程中,生物力学不仅为内固定的研制提供理论基础,也是测试和评价新设计内固定器效果的最终依据和标准。文章结果显示椎弓根螺钉植入点、植入方向、螺钉大小、螺钉形状、螺钉材料对脊柱生物力学均有一定影响。
Other AbstractTa-W alloy coatings were deposited on pure Ta plate by laser cladding with pre-coating and coaxial powder injection respectively in order to find the effects with two technique.The microstructure of the coatings was analyzed using scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS).The microhardness was examined by hardness tester.The clad layer which formed with pre-coating had a microstructure of coarse columnar grain and low dilution rate with the substrate.The average microhardness of the clad layer was 1500 HV,it was 10 times greater than the Ta substrate.The clad layer deposited with coaxial power injection had a microstructure consisting of dendrite Ta-W solid solution uniformly dispersed in the Ta matrix.The average microhardness of the clad layer was approximately 800 HV and it was 5 times greater than that of the substrate.
Keyword螺钉 脊柱 椎弓根 应用 生物力学 研究进展
Subject Area力学
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Indexed ByCSCD
Language中文
CSCD IDCSCD:4319344
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45196
Collection高温气体动力学国家重点实验室
Corresponding Author李现令
Recommended Citation
GB/T 7714
李现令,李现今,张学军,等. 脊柱椎弓根螺钉应用的生物力学特征[J]. 中国组织工程研究与临床康复,2011,15(30):5640-5645.
APA 李现令.,李现今.,张学军.,鲁守彦.,赵萍.,...&张钦明.(2011).脊柱椎弓根螺钉应用的生物力学特征.中国组织工程研究与临床康复,15(30),5640-5645.
MLA 李现令,et al."脊柱椎弓根螺钉应用的生物力学特征".中国组织工程研究与临床康复 15.30(2011):5640-5645.
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