中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (43): 6494-6500.doi: 10.3969/j.issn.2095-4344.2016.43.016

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

α-磷酸三钙骨移植材料在骨科领域应用的研究与进展

肖  渝1,李彦林1,高寰宇1,王国梁1,夏  萍2
  

  1. 昆明医科大学第一附属医院,1运动医学科,2 2014级规培学员,云南省昆明市  650032
  • 收稿日期:2016-08-16 出版日期:2016-10-21 发布日期:2016-10-21
  • 通讯作者: 李彦林,教授,昆明医科大学第一附属医院运动医学科,云南省昆明市 650032
  • 作者简介:肖渝,男,1990年生,云南省昆明市人,汉族,昆明医科大学在读硕士,主要从事运动医学研究。
  • 基金资助:

    国家自然科学基金(81460340);云南省骨关节疾病诊疗省创新团队项目(2004HC1018);医疗卫生内设机构研究项目

Alpha-tricalcium phosphate as a bone graft: research and development in orthopedics

Xiao Yu1, Li Yan-lin1, Gao Huan-yu1, Wang Guo-liang1, Xia Ping2 
  

  1. 1Department of Sport Medicine, 2Department of Compliance Training, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Received:2016-08-16 Online:2016-10-21 Published:2016-10-21
  • Contact: Li Yan-lin, Professor, Department of Sport Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • About author:Xiao Yu, Studying for master’s degree, Department of Sport Medicine, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan Province, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81460340; the Innovative Team Project for Diagnosis and Treatment of Joint Diseases in Yunnan Province, No. 2004HC1018; Research Projects of Medical Institutions

摘要:

文章快速阅读:

 

文题释义
α-磷酸三钙:本身并不具备骨诱导能力,甚至即使只用浸泡提取液培养细胞都会造成细胞增殖能力的下降,但都一致承认这一材料具有良好的生物活性、生物相容性、生物降解性和骨引导能力。Lee等发现用α-磷酸三钙制得的骨水泥,在生理溶液下呈现微碱性(pH=8.2),这有助于细胞的生长、分化,并且通过细胞形态学和生存能力证实了α-磷酸三钙具有良好的生物相容性,而且α-磷酸三钙骨水泥的成型时间和最终凝固时间都明显短于一般骨移植替代材料。
α-磷酸三钙的缺点:总体质地较脆、生物力学性能不理想,再加上无诱导成骨作用,水固化反应过程中会发生体积的膨胀,引起局部强度降低。另外,磷酸钙材料都要经过较长的自凝时间才能获得最大强度,而且自凝时间不易控制,过久会导致材料的碎裂,在移植部位有渗血的情况下需要更长的自凝时间,因此并不适宜用于承重部位及血供丰富部位的骨缺损填充治疗。

背景:α-磷酸三钙是目前骨移植替代材料当中研究和应用较为广泛的重要骨组织工程材料之一。
目的:介绍目前α-磷酸三钙骨移植替代材料的最新研究进展,并展望其在未来发展。
方法:由第一作者检索1960年1月至2015年8月PubMed数据库、FMJS数据库、中国知网数据库、万方数据库、中国生物医学文献数据库,有关使用α-磷酸三钙作为骨移植替代材料的相关文献,英文检索词为“Alpha tricalcium phosphate,Composite material,Bone graft,Bone substitution material”,中文检索词为“α-磷酸三钙,复合材料,骨移植,骨替代材料”,根据纳入标准排除重复性研究,保留42篇密切相关文献进行归纳总结。
结果与结论:α-磷酸三钙是钙磷化合物中研究较多、应用较广的一种,虽然具有良好的生物活性、生物相容性、生物降解性和骨引导能力,但并不具备骨诱导形成能力。因此,将α-磷酸三钙与无机物或有机物结合,形成混合性材料,不仅可克服α-磷酸三钙自身的物理化学特性缺陷,还能增加其弹性,有助于细胞攀附,缩短成骨改建时间,甚至作为载体携带抗菌药物等,这些改进都显著缩减了骨折损伤的修复时间,为未来骨移植材料发展方向提供思路。 

关键词: 生物材料, 骨生物材料, 骨移植, α-磷酸三钙, 复合材料, 骨替代材料, 国家自然科学基金

Abstract:

BACKGROUND: As one of the important bone substitute materials in bone tissue engineering, α-tricalcium phosphate (α-TCP) has been widely applied and researched.
OBJECTIVE: To introduce the newest research progress about α-TCP as a kind of bone substitute material, and to prospect its development.
METHODS: The first author searched the relative literatures addressing α-TCP as a bone substitute material published from January 1965 to August 2015 in PubMed, FMJS, CNKI, Wanfang and CBM databases. The keywords were “alpha tricalcium phosphate, composite material, bone graft, bone substitution material” in English and Chinese, respectively. According to the inclusion and exclusion criteria, finally 42 articles were reviewed.
RESULTS AND CONCLUSION: α-TCP is one of calcium phosphate compounds which has been extensively applied and researched. It holds good bioactivity, biocompatibility, biodegradability, biodegradation and osteoconductivity except osteoinduction. Therefore, combining α-TCP with inorganic or organic factors to establish the composite material cannot only overcome the shortage of α-TCP in physicochemical characteristics, but also provide a mixed material with better resilience that is easy for cells to adhere, shorten bone reconstruction time, and even can carry antibacterial drugs. All these improvements will markedly shorten the bone repair time and provide a new idea for future development of bone graft materials.

Key words: Biocompatible Materials, Tricalcium Phosphate, Braces, Tissue Engineering

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