中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (21): 3065-3070.doi: 10.3969/j.issn.2095-4344.2016.21.004

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

含钙化层仿生组织工程骨支架对运动性踝关节损伤的修复

陈会鹏,刘玲娜   

  1. 成都体育学院,四川省成都市 610041
  • 收稿日期:2016-03-19 出版日期:2016-05-20 发布日期:2016-05-20
  • 通讯作者: 陈会鹏,成都体育学院,四川省成都市 610041
  • 作者简介:陈会鹏,男,1989年生,贵州省水城县人,苗族,2015年成都体育学院毕业,硕士,主要从事民族传统体育学研究。
  • 基金资助:

    四川省教育厅科研基金(A20150201)

A calcified biomimetic scaffold for bone tissue engineering in the treatment of martial arts-induced ankle injury

Chen Hui-peng, Liu Ling-na   

  1. Chengdu Sport Institute, Chengdu 610041, Sichuan Province, China
  • Received:2016-03-19 Online:2016-05-20 Published:2016-05-20
  • Contact: Chen Hui-peng, Chengdu Sport Institute, Chengdu 610041, Sichuan Province, China
  • About author:Chen Hui-peng, Master, Chengdu Sport Institute, Chengdu 610041, Sichuan Province, China
  • Supported by:

    the Scientific Research Fund of Sichuan Provincial Education Bureau, No. A20150201

摘要:

文章快速阅读:

文题释义:
组织工程支架材料:
是指能与组织活体细胞结合并能植入生物体的不同组织,并根据具体替代组织具备的功能的材料。为了使种子细胞增殖和分化,需要提供一个由生物材料所构成的细胞支架,支架材料相当于人工细胞外基质。
软骨组织工程:是将软骨种子种植于可生物降解、组织相容性好的生物材料形成复合物,然后再把该复合物植入软骨缺损处,生物材料自行降解的过程中,种植的细胞形成新的软骨来填充缺损。

 

背景:在体育运动或日常生活中,由于受力的突发性,尤其是受到非生理性剥离运动时造成的损伤比较普遍,如篮球、足球、橄榄球和武术运动中,该类运用均为对抗性、爆发性运动导致踝关节损伤发生率较高。常规方法虽然能改善患者症状,但是长期治疗欠佳,治疗后并发症发生率较高,容易引起二次伤害。
目的:制备含钙化层仿生组织工程骨支架,观察其对运动性踝关节损伤的修复效果。
方法:选取成都体育学院2014年12月至2015年12月诊治的80例武术运动踝关节损伤患者,随机分为对照组和含钙化层仿生组织工程骨支架组,每组40例。利用羊软骨制备脱细胞微粒悬液,加入预冷磨具中制备直径为8 mm的含钙化层骨软骨组织块,且利用冻干法和化学交联法能获得含钙化层仿生组织工程支架,含钙化层仿生组织工程骨支架组采用含钙化层仿生组织工程骨支架植入方法治疗,对照组给予药物治疗。
结果与结论:①制备的支架形态:骨软骨组织切取表面透明部分后,保留骨软骨钙化层,透明软骨呈白色,正常骨软骨之间存在钙化层,软骨下骨为松质骨;将制备的骨软骨钙化层脱细胞组织块进行苏木   精-伊红染色,结果显示:骨软骨钙化层仅剩下细胞空巢,但是骨软骨块中软骨、骨软骨钙化层以及软骨下骨结构保持良好;②患者疼痛情况:两组患者治疗前疼痛评分差异无显著性意义(P > 0.05);含钙化层仿生组织工程骨支架组治疗后1,4周疼痛评分显著低于对照组(P < 0.05);③疗效:含钙化层仿生组织工程骨支架组治疗疗效率显著高于对照组(P < 0.05)。④结果证实,试验成功制备含钙化层仿生组织工程支架,将其用于修复运动性踝关节损伤效果较好。

 

ORCID: 0000-0003-2320-6901(陈会鹏)

关键词: 生物材料, 骨生物材料, 含钙化层仿生组织工程骨支架, 制备方法, 武术运动, 踝关节损伤, 治疗效果, 冻干法, 化学交联法, 疼痛评分, 生物化学, 组织学

Abstract:

BACKGROUND: In sports or in daily life, damage due to sudden power, especially due to non-physiological release, is commonly seen. For example, during basketball, soccer, rugby, or martial arts movement, oppositional and explosive movements result in a higher incidence of ankle injuries. While conventional methods can improve symptoms, the long-term efficacy is unsatisfactory, accompanied by a higher incidence of complications that are likely to cause secondary damage.

OBJECTIVE: To prepare a calcified biomimetic scaffold for bone tissue engineering and to observe the therapeutic effect of this scaffold on martial arts-induced ankle injuries.
METHODS: Eighty patients with martial arts-induced ankle injury were selected from Chengdu Sport Institute between December 2014 and December 2015. These patients were randomly assigned to control group with drug treatment and biomimetic scaffold group with calcified biomimetic scaffold implantation (n=40 per group). Acellular suspension prepared by goat cartilage was used to make cartilage tissue blocks with a calcified layer with a diameter of 8 mm in a prechilled abrasive apparatus. Then, the calcified biomimetic scaffold for bone tissue engineering was prepared using lyophilization and chemical crosslinking methods.

RESULTS AND CONCLUSION: Osteochondral tissues were partially hyalinized on the surface with the presence of osteochondral calcified layer. The hyalinized cartilage was white in color, the calcified layer existed between normal osteochondral tissues, and the subchondral bone was considered as the cancellous bone. Then the calcified layer was stained using hematoxylin-eosin. We found that cartilage cells in the calcified layer were basically removed, forming “empty nests” one by one. But the structure of bone cartilage in the tissue block, the calcified layer and the subchondral bone retained well. For pain assessment, visual analog scale scores were detected and showed no difference between two groups prior to treatment (P > 0.05), but became significantly higher in the biomimetic scaffold than the control group at 1 and 4 weeks after treatment (P < 0.05). Besides, the biomimetic scaffold exhibited better therapeutic efficacy than the drug treatment (P < 0.05). Overall, this study successfully prepare the calcified biomimetic scaffold for bone tissue engineering that is suitable for repair of sport-induced ankle injuries.

 

Key words: Tissue Engineering, Biocompatible Materials, Ankle Joint

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