中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (38): 7037-7040.doi: 10.3969/j.issn.1673-8225.2010.38.002

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

海藻酸钠为主体胶黏合骨碎块的体外实验

张建新1,高亚辉2,潘壮壮1,3,蔡真真1,林宇洋1   

  1. 1厦门市中医院,福建省厦门市   361009;2厦门大学,福建省厦门市   361009;3山东省黄河医院外科,山东省济南市   250032
  • 出版日期:2010-09-17 发布日期:2010-09-17
  • 作者简介:张建新☆,男,1965年生,福建省晋江市人,汉族,2000年福建中医药大学毕业,博士,主任医师,主要从事骨骼生物力学和生物材料学研究。fjzjx@126.com
  • 基金资助:

    课题获“卫生部科学研究基金——福建省卫生教育联合攻关计划”的资助(WKJ2005-2-018),课题名称:海藻酸钙与聚乳酸混合物作为骨折断端新型胶黏剂的研究。

In vitro study of bone adhesive mainly composed of sodium alginate

Zhang Jian-xin1, Gao Ya-hui2, Pan Zhuang-zhuang1, Cai Zhen-zhen1, Lin Yu-yang1   

  1. 1 Xiamen Traditional Chinese Medicine Hospital, Xiamen   361009, Fujian Province, China; 2 Xiamen University, Xiamen   361009, Fujian Province, China; 3 Department of Surgery, Huanghe Hospital, Jinan   250032, Shandong Province, China
  • Online:2010-09-17 Published:2010-09-17
  • About author:Bhang Jian-xin☆, Doctor, Chief physician, Xiamen Tradition Chinese Medicine Hospital, Xiamen 361009, Fujian Province, China fjzjx@126.com
  • Supported by:

    Science Research Foundation of Ministry of Health & United Fujian Provincial Health and Education Project for Tackling the Key Research, No. WKJ2005-2-018*

摘要:

背景:粉碎性骨折比较理想的治疗方式是应用胶黏剂直接黏合骨碎块,医用黏合剂在临床上已广泛应用。但利用植物中提取的生物胶用于骨折块的固定治疗目前未见报道。
目的:采用海藻酸钠胶为主体材料,改性后加入增黏剂、固化剂进行固定骨折块的体外实验,并观察其黏结效果。
方法:取市售新鲜猪股骨皮质骨标本,制备成大小约2 cm2的骨片。以海藻酸钠为主体胶,分别与羧甲基纤维素钠和瓜儿胶按适当比例混和,用其黏合猪股骨断面面积为1 cm2左右大小的皮质骨块,然后用氯化钙溶液固化,分别测试实验当天和浸泡于生理盐水1,2,3周后骨块的剪切应力。
结果与结论:两种混合胶的黏合力随着时间的推移呈正态分布曲线,在1周后达到最高峰,剪应力达到17 000 σ/Pa,之后逐渐下降,黏剂完全有能力粘固断面面积1 cm2左右大小的骨块。提示海藻酸钠改性后加入适当增黏剂,可以起到固定小骨块的作用。

关键词: 粉碎性骨折, 海藻酸钠, 骨黏合剂, 剪应力, 体外实验

Abstract:

BACKGROUND: The ideal treatment for comminuted fracture is to directly bind bone fragments using adhesive, medical adhesive has been widely used in clinical practice. But little information is available regarding the biogel derived from the plants for the fixation of fracture block.
OBJECTIVE: To prepare a new biological adhesive mainly composed of alginate gels that can fix bone fracture block in vitro and observe the binding effect.
METHODS: The cortex bones of femur from commercially available fresh pigs were prepared into 2-cm2 bone blocks whose area of section was about 1 cm2. The alginate gels were mingled with sodium carboxymnthyl cellulose and guar gum separately in certain proportion. The bone specimens were fixed by the glue and then cured with calcium chloride solution. Shear stress force of the bone blocks was measured on the day of the experimentation, and 1, 2, 3 weeks after saline infiltrated.
RESULTS AND CONCLUSION: The adhesive bonding strength had a normal distribution curve over time, and reached the peak one week later (shear stress was 17 000 σ/Pa), then gradually reduced. The adhesives could firmly fix 1-cm2 bone blocks. Modified alginate gel with suitable tackifier could fix small bone block.

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