中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (30): 4818-4822.doi: 10.12307/2021.267

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

经皮内镜髓核摘除过程中保护关节囊降低邻椎病发病风险的生物力学分析

黄陈翼1,李敬池1,2,徐文强2,张啸宇2,房中鑫3,刘宗超1   

  1. 1西南医科大学附属中医医院骨伤科,四川省泸州市   646000;2南京中医药大学附属中西医结合医院,江苏省南京市   210028;3西华大学流体与机械动力教育部重点实验室,四川省成都市   611700
  • 收稿日期:2020-11-20 修回日期:2020-11-21 接受日期:2020-12-24 出版日期:2021-10-28 发布日期:2021-07-29
  • 通讯作者: 刘宗超,博士,副主任医师,西南医科大学附属中医医院骨伤科,四川省泸州市 646000
  • 作者简介:黄陈翼,男,1985年生,四川省泸县人,汉族,2012年南昌大学临床医学院毕业,硕士,主治医师,主要从事骨科疾病的治疗及其生物力学机制研究
  • 基金资助:
    四川省教育厅自然科学重点项目 (17ZA0432),项目负责人:刘宗超

Capsule protection reduces the incidence risk of adjacent segment diseases after percutaneous endoscopic discectomy: a biomechanical analysis

Huang Chenyi1, Li Jingchi1, 2, Xu Wenqiang2, Zhang Xiaoyu2, Fang Zhongxin3, Liu Zongchao1   

  1. 1Department of Orthopedics and Traumatology, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou 646000, Sichuan Province, China; 2Integrated Traditional Chinese and Western Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu Province, China; 3Key Laboratory of Fluid and Mechanical Power of Ministry of Education, Xihua University, Chengdu 611700, Sichuan Province, China
  • Received:2020-11-20 Revised:2020-11-21 Accepted:2020-12-24 Online:2021-10-28 Published:2021-07-29
  • Contact: Liu Zongchao, MD, Associate chief physician, Department of Orthopedics and Traumatology, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Huang Chenyi, Master, Attending physician, Department of Orthopedics and Traumatology, Affiliated Hospital of Traditional Chinese Medicine, Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Supported by:
    the Key Natural Science Project of Sichuan Provincial Education Department, No. 17ZA0432 (to LZC)

摘要:

文题释义:
后路经皮内镜:为腰椎经皮内镜的经典入路,具体步骤为经椎板间入路进入盘内,可治疗绝大多数类型的腰椎间盘突出症,并可通过不同手术器械(包括环锯、镜下动力系统)对椎板、关节突进行成型并减压部分黄韧带结构,对中央管狭窄、侧隐窝狭窄进行减压。
邻椎病:为脊柱手术后的常见并发症,多因手术导致邻近节段生物力学环境恶化引起,在影像学上常表现为手术邻近节段的退变加速,部分患者出现症状复发,需行翻修手术。在生物力学研究中,可通过评估手术前后及不同术式应用前后邻近节段生物力学指标变化推论邻椎病的发病风险。
背景:生物力学环境恶化是腰椎退行性疾病发病的重要因素,腰椎滑膜关节关节囊被前人研究证明对腰椎总体生物力学环境的维持具有重要意义。
目的:探讨腰椎后路经皮内镜下髓核摘除过程中不同程度的关节囊损伤对术后邻椎病发病相关生物力学环境恶化的影响。
方法:以作者前期重建完成的完整腰骶椎模型(L3-S1)及经皮内镜下髓核摘除后有限元模型为基础,通过调整关节囊截面积模拟经皮内镜下髓核摘除术中不同范围的关节囊损伤,观察术前、术后不同模型中椎间盘内压力、纤维环最大剪切力、软骨终板冯米塞斯应力等生物力学指标的变化,以评估术后邻椎病的发病风险。
结果与结论:①经皮内镜下髓核摘除后模型关节囊截面积的降低会导致邻近节段软骨终板冯米塞斯应力和纤维环最大剪切力明显上升,成为导致术后邻椎病发病风险上升的重要危险因素;②因此经皮内镜下髓核摘除过程中关节囊保护对降低术后邻椎病发病风险有十分重要的积极作用。
https://orcid.org/0000-0003-1994-3669 (黄陈翼) 

关键词: 腰椎关节囊, 经皮内镜下, 髓核摘除, 邻椎病, 有限元分析, 生物力学

Abstract: BACKGROUND: Biomechanical deterioration was the most significant trigger of lumbar degenerative diseases. Capsule of the zygapophyseal joint has been proven to be of great significance to maintain the overall biomechanical environment of lumbar spine.  
OBJECTIVE: To investigate the biomechanical effect of various degrees of capsule injury in the percutaneous endoscopic discectomy on the deterioration of biomechanical indicators related to adjacent segment diseases.
METHODS:  Lumbo-sacral finite element models from L3 to S1 constructed and validated in our previously published studies, and finite element models after percutaneous endoscopic discectomy were used. Different ranges of capsule injury in percutaneous endoscopic discectomy were simulated by adjusting the cross-sectional area of the joint capsule. To evaluate the risk of adjacent vertebral disease after operation, the changes of biomechanical indexes such as intradiscal pressure, maximum shear force of annulus fibrosus and von Mises stress of cartilage endplate were observed in different models before and after operation.  
RESULTS AND CONCLUSION: (1) The decrease of the capsule cross-sectional areas in percutaneous endoscopic discectomy models leads to the obvious increase of the von-Mises stress of the cartilage endplate and the maximum shear force of annulus fibrosus, becoming an important risk factor for the increased risk of postoperative adjacent segment disease. (2) Therefore, joint capsule protection in percutaneous endoscopic discectomy plays an important positive role in reducing the risk of adjacent segment disease.

Key words: capsule of zygapophyseal joint, percutaneous endoscopic discectomy, adjacent segment diseases, finite element analysis, biomechanics

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