中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (2): 309-314.doi: 10.3969/j.issn.2095-4344.2017.02.026

• 生物材料综述 biomaterial review • 上一篇    下一篇

医用钛合金掺锶改性的研究与进展

李瑞延,刘贯聪,梁豪君,秦彦国
  

  1. 吉林大学第二医院,吉林省长春市  130041
  • 收稿日期:2016-10-28 出版日期:2017-01-18 发布日期:2017-02-27
  • 通讯作者: 秦彦国,副教授,主任医师,硕士生导师,吉林大学第二医院,吉林省长春市 130041
  • 作者简介:李瑞延,男,1991年生,满族,吉林大学第二医院在读硕士,主要从事多孔钛合金表面改性研究。
  • 基金资助:

    吉林省省级产业专业创新专项资金项目(2016C037);吉林省科技发展计划项目(20150414006G H)

Research progress of strontium-doped biomedical titanium alloys

Li Rui-yan, Liu Guan-cong, Liang Hao-jun, Qin Yan-guo
  

  1. Second Hospital of Jilin University, Changchun 130041, Jilin Province, China
  • Received:2016-10-28 Online:2017-01-18 Published:2017-02-27
  • Contact: Qin Yan-guo, Associate professor, Chief physician, Master’s supervisor, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China
  • About author:Li Rui-yan, Studying for master’s degree, Second Hospital of Jilin University, Changchun 130041, Jilin Province, China
  • Supported by:

    a grant from the Provincial Industry Innovation Project of Jilin Province, No. 2016C037; the Science and Technology Development Program of Jilin Province, No. 20150414006G H

摘要:

文章快速阅读

 

文题释义:
医用钛合金
:主要应用于人体硬组织替代物和修复物。医用钛合金经过多年发展,有多种新型合金出现,但Ti6Al4V仍为目前临床主要应用的合金。
锶:锶是和钙同族的微量元素,主要存在于骨骼中,锶可以促进成骨细胞增殖,从而促进骨组织的生长。

背景:以钛合金为基底进行表面改性进一步提高其表面生物活性是目前研究的热点,而掺锶改性是提高植入物骨整合性的有效手段。
目的:介绍以医用钛合金为基底掺锶改性的研究进展。
方法:以 “钛合金,锶,骨组织,成骨”为中文检索词,以“titanium(ti),strontium(sr),bone,osteogenic”为英文检索词,在中国知网和PubMed数据库检索2000年1月至2016年4月期间有关医用钛合金掺锶改性方面的文献。
结果与结论:①医用钛合金具有较好的生物相容性,且与人体骨弹性模量接近,因而广泛应用于临床骨修复的植入物;②单纯钛合金表面生物活性较差,难以和骨组织结合达到骨整合;③对钛合金进行表面功能改性是行之有效的方案,而掺锶改性可显著促进新骨生成,达到骨与钛合金的整合;④目前掺锶改性的钛合金植入物及支架材料大多还处于体外实验和动物实验阶段,快速、稳定、易获得且安全有效的改性方法仍需进一步研究。

关键词: 生物材料, 骨生物材料, 钛合金, 锶元素, 表面改性, 骨整合, 骨再生, 材料生物相容性, 骨组织工程

Abstract:

BACKGROUND: Surface modification of titanium surface to improve its biological activity is the research hotspot. Strontium-doped coating is considered to be an effective approach to promote the implant osseointegration.
OBJECTIVE: To introduce the research progress of strontium-modified biomedical titanium alloys.
METHODS: Articles related to the medical titanium alloys modified with strontium published from January 2000 to April 2016 were retrieved from CNKI and PubMed databases. The keywords were “titanium (Ti), strontium (Sr), bone, osteogenic” in Chinese and English, respectively.
RESULTS AND CONCLUSION: Titanium alloys have been widely used in bone implantation because of their good biocompatibility and similar elasticity modulus with human bones. However, pure titanium alloys have poor bioactivity which leads to weak bone-implant contact. Surface modification is a good approach to enhance implant osseointegration. Sr-doped surface treatment can promote new bone formation and osseointegration. Most of the studies about Sr-doped modification are ongoing at the extracorporeal and animal experiment stage; therefore, further investigation is required to seek rapid, stable, available, safe and effective methods. 

Key words: Titanium, Alloys, Strontium, Osseointegration, Tissue Engineering

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