中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (8): 1214-1221.doi: 10.3969/j.issn.2095-4344.1084

• 骨与关节图像与影像 bone and joint imaging • 上一篇    下一篇

新型纤维环成形器置入实验猪的影像学评价及生物力学特征

舒 高1,陈晓东2,翟明玉3,李全修2,梁鹏展3,杨学军2,赵海博2,蔚辰强2,白雪岭4,李 龙4   

  1. 1广州中医药大学第三临床医学院,广东省广州市 510405;2深圳市罗湖医院集团罗湖区中医院,广东省深圳市 518000;3广州中医药大学附属深圳平乐骨伤科医院,广东省深圳市 518000;4中国科学院深圳先进技术研究院,广东省深圳市 518000
  • 出版日期:2019-03-18 发布日期:2019-03-18
  • 通讯作者: 陈晓东,博士,主任医师,深圳市罗湖医院集团罗湖区中医院,广东省深圳市 518000
  • 作者简介:舒高,男,1989 年生,湖北省武穴市人,汉族,广州中医药大学在读硕士,主要从事中医药治疗脊柱退行性疾病研究。
  • 基金资助:

    深圳市知识创新计划项目(JCYJ20150402162418740),项目负责人:陈晓东

Imaging evaluation and biomechanical characteristics of the novel intradiscal electrothermal annuloplasty in pigs

Shu Gao1, Chen Xiaodong2, Zhai Mingyu3, Li Quanxiu2, Liang Pengzhan3, Yang Xuejun2, Zhao Haibo2, Yu Chenqiang2, Bai Xueling4, Li Long4   

  • Online:2019-03-18 Published:2019-03-18
  • Contact: Chen Xiaodong, MD, Chief physician, Luohu District Hospital of Traditional Chinese Medicine, Shenzhen Luohu Hospital Group, Shenzhen 518000, Guangdong Province, China
  • About author:Shu Gao, Master candidate, the Third Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China
  • Supported by:

    the Shenzhen Knowledge Innovation Program, No. JCYJ20150402162418740 (to CXD)

摘要:

文章快速阅读:

 
 

 

文题释义:
纤维环成形器:创新设计的纤维环成形器由钛合金锚定器,锚定器上有加固防倒退倒挂齿及促进骨连接孔、尾端连接连接件与聚四氟乙烯挡板活动连接而成的,钛合金锚定器主要起到固定及防治倒出,聚四氟乙烯挡板起到阻挡髓核,修复纤维环的作用。
椎板间开窗减压髓核摘除:切开皮肤后达到关节突,使用枪式咬骨钳咬开椎板、开窗暴露纤维环,利用髓核钳潜行切除棘突根部,将髓核组织全部取出摘除髓核。在创伤很小的前提下,彻底治疗腰椎间盘突出症。
 
摘要
背景:椎间盘突出使纤维环的完整性破坏,可能会导致椎间隙缩小、椎间盘退变及运动节段失稳。而单纯髓核摘除不会阻止这一过程的进展,这些变化会进一步导致椎间盘退变,增加椎间盘再次突出的风险。
目的:探讨髓核摘除术后椎间盘的退变,以及纤维环成形器置入能否恢复椎间隙高度、延缓椎间盘退变及维持运动节段的稳定性。
方法:将实验猪随机分成2组,实验组行髓核摘除纤维环成形术,对照组行单纯髓核摘除术,术后150 d处死后取出腰椎标本,进行影像学检查及生物力学加载,影像学观察椎间隙高度、椎间盘退变程度,生物力学加载评价运动节段的稳定性。
结果与结论:①2组实验标本的一般情况及髓核摘除量之间差异无显著性意义(P > 0.05);②2组椎间隙高度、椎间盘退变情况差异均有显著性意义(P < 0.05),实验组优于对照组;③在正常生理7个方向上的生物力学加载中,实验组中性区活动度及腰椎活动范围均显著小于对照组(P < 0.05);④在实验猪的影像学评价及生物力学研究中发现,纤维环成形器在髓核摘除术中可以一定程度上修复纤维环;对纤维环成形器置入后进行测试,结果显示纤维环成形器对椎间隙高度恢复、椎间盘退变延缓及运动节段稳定性的维持效果是值得肯定的。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程
ORCID: 0000-0002-3087-7669(舒高)

关键词: 纤维环修复成形, 猪, 纤维环成形器, 椎间隙高度, 腰椎间盘退变, 髓核摘除, 运动节段稳定性, 生物力学加载

Abstract:

BACKGROUND: Intervertebral disc herniation can damage the integrity of the annulus fibrosus, which may lead to intervertebral space decreasing, disc degeneration and instability of the motion segment. The removal of the nucleus pulposus will not prevent the progress of this process, but further results in disc degeneration and increases risk of the disc re-herniation.

OBJECTIVE: To explore the disc degeneration after discectomy, and whether intradiscal electrothermal annuloplasty can restore the intervertebral space height, delay disc degeneration and maintain instability of the motion segment.
METHODS: Pigs were randomized into two groups, and received discectomy and intradiscal electrothermal annuloplasty (experimental group) or discectomy (control group). The animals were killed to remove the lumbar specimens after 150 days. Imaging evaluation and biomechanical tests were used to observe the intervertebral disc height, intervertebral disc degeneration and the stability of the motion segment, respectively.
RESULTS AND CONCLUSION: (1) The general situation and amount of removal nucleus pulposus showed insignificant difference between two groups (P > 0.05). (2) The intervertebral disc height and the disc degeneration in the experimental group were significantly superior to those in the control group (P < 0.05). (3) The biomechanical load at the seven normal physiological directions showed that the range of motion of the neutral zone and lumbar region in the experimental group were significantly less than those in the control group (P < 0.05). (4) Our imaging and biomechanical results show that intradiscal electrothermal annuloplasty can maintain the integrity of the annulus fibrosus, intervertebral height, and the stability of the motion segment, decrease disc degeneration.

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Intervertebral Disk, Diskectomy, Percutaneous, Swine, Biomechanics, Tissue Engineering

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