中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (36): 5768-5773.doi: 10.3969/j.issn.2095-4344.2907

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

椎间孔镜下腰椎间盘髓核摘除治疗腰椎间盘突出症的生物力学优势

吐尔洪江·阿布都热西提1,孟祥玉1,买合木提·亚库甫1,王天堂2,西尔艾力·买买提1,戴继芳1,王  为3   

  1. 1新疆医科大学第六附属医院微创脊柱治疗科,新疆维吾尔自治区乌鲁木齐市  830002;2新疆阿克苏地区第一人民医院骨科,新疆维吾尔自治区阿克苏地区  843000;3乌鲁木齐大为创新信息科技有限公司,新疆维吾尔自治区乌鲁木齐市  830000
  • 收稿日期:2020-03-11 修回日期:2020-03-17 接受日期:2020-04-15 出版日期:2020-12-28 发布日期:2020-10-27
  • 通讯作者: 吐尔洪江·阿布都热西提,硕士,副主任医师,硕士生导师,新疆医科大学第六附属医院微创脊柱治疗科,新疆维吾尔自治区乌鲁木齐市 830002
  • 作者简介:吐尔洪江·阿布都热西提,1975年生,2007年新疆医科大学毕业,硕士,副主任医师,硕士生导师,主要从事脊柱微创方面的研究。
  • 基金资助:
    新疆维吾尔自治区自然科学基金面上项目(2017D01C266)

Biomechanical advantages of percutaneous endoscopic lumbar discectomy for lumbar disc herniation

Tuerhongjiang·Abuduresiti1, Meng Xiangyu1, Maihemuti·Yakufu1, Wang Tiantang2, Xieraili·Maimaiti1, #br# Dai Jifang1, Wang Wei3#br#   

  1. 1Department of Minimally Invasive Spine Therapy, Sixth Affiliated Hospital of Xinjiang Medical University; 2Department of Orthopedics, Akesu First People’s Hospital; 3Urumqi Dawei Innovation Information Technology Co., Ltd.
  • Received:2020-03-11 Revised:2020-03-17 Accepted:2020-04-15 Online:2020-12-28 Published:2020-10-27
  • Contact: Tuerhongjiang·Abuduresiti, Master, Associate chief physician, Master’s supervisor, Department of Minimally Invasive Spine Therapy, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • About author:Tuerhongjiang·Abuduresiti, Master, Associate chief physician, Master’s supervisor, Department of Minimally Invasive Spine Therapy, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation (General Project) of Xinjiang Uygur Autonomous Region, No. 2017D01C266

摘要:

文题释义:

腰椎间盘突出症的手术治疗:腰椎间盘突出症是脊柱外科常见病,手术方式较多。近年来,经皮椎间孔镜腰椎间盘髓核摘除术作为微创治疗方法迅速发展,具有创伤小、出血量少并能快速康复的优点,受到越来越多的关注。

背景:腰椎间盘突出症的手术方式较多,各有优缺点,通过有限元分析方法进行脊柱生物力学研究可以指导临床工作。

目的建立L3-5三维有限元模型,分析不同术式在椎间盘摘除后对脊柱力学的影响。

方法选择1名无腰椎病史的35岁男性志愿者,收集腰椎CT数据构建有限元模型并验证。在L3/L5脊柱正常模型(模型Ⅰ)的基础上建立L4/5节段单纯开窗髓核摘除模型(模型Ⅱ)、椎间盘镜手术模型(模型Ⅲ)、经皮椎间孔镜腰椎间盘髓核摘除模型(模型Ⅳ)、关节突关节切除模型(Ⅴ),在7种加载工况下测定L4/L5节段椎体、椎间盘和左右关节软骨应力分布及L4椎体位移。

结果与结论①建立的三维有限元模型有效,方差分析模型有效;②L4-5椎间盘两两比较后模型Ⅲ、Ⅳ在椎间盘应力集中最小;L4椎体应力,模型Ⅳ对椎体影响最小;L4椎体位移,模型Ⅲ和Ⅳ对椎体稳定影响最小;③从加载方式看,关节突关节损伤越小,椎间盘应力越小,模型Ⅳ最小;左侧关节突模型Ⅲ和Ⅳ均保持关节完整;右侧关节左右旋转加载下手术侧关节越完整,应力越大,故模型Ⅳ较大;左右侧倾加载下反而相反,模型Ⅴ最大;L4椎体应力模型Ⅳ最小;椎体位移,模型Ⅲ和Ⅳ位移最小,接近模型Ⅰ;④提示经皮椎间孔镜腰椎间盘髓核摘除模型在椎体、椎间盘和关节突关节应力分布最小,有明显优势;椎间盘镜手术模型和经皮椎间孔镜腰椎间盘髓核摘除模型位移均较其他手术模型稳定,二者无差异;故经皮椎间孔镜腰椎间盘髓核摘除目前是较理想的术式。 

ORCID: 0000-0002-2604-0049(吐尔洪江·阿布都热西提)

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

关键词: 骨, 腰椎, 椎间盘, 椎间孔镜, 髓核, 生物力学, 有限元分析

Abstract:

BACKGROUND: There are many operative methods for lumbar disc herniation; all kinds of operations have advantages and disadvantages. The biomechanical study of spine by finite element analysis can guide the clinical work.

OBJECTIVE: To establish L3-5 three-dimensional finite element model and analyze the effect of different surgical methods on the mechanics of the spine after discectomy.  

METHODS: A 35-year-old volunteer with no history of lumbar disease was selected. Lumbar CT data were obtained to build a finite element model and verify the validity. Five models of L3/L5 spine were established, including L3/L5 normal spine model as the model I, small fenestration operation as a model II, microendoscopic discectomy as model III, percutaneous endoscopic lumbar discectomy as model IV, and facet removal operation as model V. Stress distribution of L4/L5 vertebrae, intervertebral disc, left and right articular cartilages and displacement of L4 vertebrae were measured under seven loading conditions.  

RESULTS AND CONCLUSION: (1) The three-dimensional finite element model was effective. Model was effective by analysis of variance. (2) The stress concentration was low and the lowest instability of model III and IV by paired comparison. Model IV had the least effect on vertebral body in L4 vertebral body stress. Model III and IV had the least effect on vertebral stability in the displacement of L4 vertebral body. (3) From load modes, the less stress was received by the intervertebral disc when the joint damaged small, and the model IV was the smallest. The left articular process cartilage, models III and IV both maintained joint integrity. Under the right and left rotation load of on the right side, the greater stress received when the joint on the surgical side maintained more complete, so model IV was larger. On the contrary, the bilateral tilted load was in contrast, and the model V was largest. L4-vertebral had the smallest equivalent stress in model IV. The displacement was obvious when the joint damaged more. Models III and IV had the smallest displacements and were close to model I. (4) It is indicated that surgical model of percutaneous endoscopic lumbar discectomy has the smallest stress distribution in the vertebral body, intervertebral disc, and articular process, and has obvious advantages. The displacements of microendoscopic discectomy and percutaneous endoscopic lumbar discectomy are more stable than other surgical models. There is no difference between the two. Therefore, percutaneous endoscopic lumbar discectomy is currently an ideal technique.

Key words: bone, lumbar vertebrae, lumbar intervertebral disc, intervertebral foramen, nucleus pulposus, biomechanics, finite element analysis

中图分类号: