中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (3): 314-318.doi: 10.3969/j.issn.2095-4344.2016.03.002

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

自体骨及重组人骨形态发生蛋白2复合骨在腰椎中融合的效果:与异体骨比较

张 轲,彭 强   

  1. 四川医科大学附属第一医院小儿外科,四川省泸州市 646000
  • 收稿日期:2015-11-15 出版日期:2016-01-15 发布日期:2016-01-15
  • 通讯作者: 彭强,博士,教授,四川医科大学附属第一医院小儿外科,四川省泸州市 646000
  • 作者简介:张轲,男,1983年生,四川省宜宾市人,汉族,四川医科大学在读硕士,医师,主要从事小儿外科方面的工作,
  • 基金资助:
    四川省卫生厅项目(140049);国家自然科学基金(81372110)

Autogenous bone, recombinant human bone morphogenetic protein 2 composite bone or allogeneic bone in rabbit lumbar spinal fusion

Zhang Ke, Peng Qiang   

  1. Department of Pediatric Surgery, First Affiliated Hospital of Sichuan Medical University, Luzhou 646000, Sichuan Province, China
  • Received:2015-11-15 Online:2016-01-15 Published:2016-01-15
  • Contact: Peng Qiang, M.D., Professor, Department of Pediatric Surgery, First Affiliated Hospital of Sichuan Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Zhang Ke, Studying for master’s degree, Physician, Department of Pediatric Surgery, First Affiliated Hospital of Sichuan Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:

     a grant from Sichuan Health Department, No. 140049; the National Natural Science Foundation of China, No. 81372110

摘要:

  文章快速阅读:

 

文题释义:
腰椎融合:通过手术植骨的方法使病变椎间关节之间发生骨性结合,从而建立和维持腰椎稳定性。如何重建腰椎稳定性是恢复病变腰椎生理功能的关键环节。随着各种内固定技术的发展,尤其是经椎弓根固定技术的发明和完善,极大地推动了腰椎稳定性重建的发展,达到了腰椎三维坚强固定,实现了腰椎修复后即刻稳定。因而,植骨融合在重建腰椎稳定中发挥着关键的作用,融合成功与否也成为脊柱手术成功与否的重要标志之一。

脊柱融合与骨形态发生蛋白:研究证实骨形态发生蛋白可促进脊柱融合,目前已有基因重组骨形态发生蛋白应用于临床。但关于骨形态发生蛋白在脊柱融合方面的临床疗效评估,还需要在未来的大量随机化对比研究中得到更多的客观数据加以量化证实。

 

背景:重组人骨形态发生蛋白2能够有效促进新骨生成和骨折愈合,但其于腰椎融合的具体应用仍存在较多争论。
目的:观察植入自体骨、重组人骨形态发生蛋白2复合骨在兔腰椎融合中的效果差异。
方法:选取45只新西兰大白兔,构建腰椎后路横突间植骨融合兔模型,建模后随机分为3组,分别于兔L5和L6横突间位置植入自体髂骨、重组人骨形态发生蛋白2复合骨和异体髂骨。植入后正常喂养8周,麻醉后处死各组兔观察椎间融合情况。

结果与结论:①与植入异体髂骨相比,植入自体髂骨和重组人骨形态发生蛋白2复合骨模型兔的手法检测融合率、影像学检查融合率、L5-6/L4-5椎体的拉伸强度比值及新生骨组织所占百分比均显著升高(P < 0.05),且后2组上述各指标变化差异比较无显著性意义。②结果证实:兔腰椎入自体骨、重组人骨形态发生蛋白2复合骨后的融合效果相当,均优于异体骨。 

 ORCID: 0000-0003-1583-3067(张轲)

关键词: 生物材料, 骨生物材料, 重组人骨形态发生蛋白2复合骨, 自体骨, 异体髂骨, 兔, 腰椎融合, 国家自然科学基金

Abstract:

BACKGROUND: Recombinant human bone morphogenetic protein 2 (rhBMP2) can effectively promote new 
bone formation and fracture healing, but its specific application in the lumbar spinal fusion remains controversial.
OBJECTIVE: To study the effect of autogenous bone, rhBMP2 composite bone or allogeneic bone on the lumbar spinal fusion of rabbits. 
METHODS: Forty-five New Zealand white rabbits were enrolled to make intertransverse lumbar interbody fusion models and then randomly subjected to autogenous iliac bone, rhBMP2 composite bone or allogeneic iliac bone via L5-L6 intertransverse process, respectively. Then, the rats were sacrificed under anesthesia at 8 weeks after operation to observe the lumbar fusion.
RESULTS AND CONCLUSION: Compared with the allogeneic iliac bone group, the fusion rates, tensile strength ratio of L5-6/L4-5, and percentage of new bone tissues were increased more significantly in the other two groups  (P < 0.05), and moreover, there was no difference between the autogenous iliac bone and rhBMP2 composite bone groups. These findings indicate that the autogenous iliac bone and rhBMP2 composite bone have similar fusion effects, both of which are superior to the allogeneic bone.