摘要
目的:建立C5/6颈椎间盘的三维有限元模型并验证其有效性,探讨不同复合运动下颈椎间盘的生物力学变化。方法:建立C5/6椎间盘突出有限元模型,依次加载前屈+左旋转、前屈+右旋转、后伸+左旋转及后伸+右旋转复合运动,观察颈椎间盘突出区域的纤维环位移和髓核压力变化。结果:前屈+右旋转、后伸+右旋转时,椎间盘左后外侧突出区域的纤维环呈顺时针的旋前方向移动;前屈+左旋转、后伸+左旋转时,椎间盘左后外侧突出区域的纤维环向逆时针的旋后方向移动;前屈+左旋转、前屈+右旋转载荷下,椎间盘突出区域的纤维环位移值分别为-0.5459 mm和0.6765 mm;后伸+左旋转、后伸+右旋转载荷下,突出区域的纤维环位移值分别为-0.6631 mm和0.6040 mm;前屈+左旋转、前屈+右旋转载荷下,髓核的压力值分别为0.1364 MPa和0.1256 MPa;后伸+左旋转、后伸+右旋转载荷下,髓核的压力值分别为0.1937 MPa和0.1478 MPa。结论:前屈向健侧旋转可有效缓解颈椎间盘突出患者的临床症状,而后伸向患侧旋转则可能会加重症状,不利于颈椎间盘突出患者的康复与治疗。
Objective:To establish the three-dimensional finite element model of C5/6 cervical intervertebral disc and verify its validity,and to explore the biomechanical changes of cervical intervertebral disc under different compound movement.Methods:The finite element model of C5/6 disc herniation was established.The flexion+left rotation,flexion+right rotation,extension+left rotation and extension+right rotation were loaded in turn to observe the displacement of annulus fibrosus and the change of nucleus pulposus pressure in the area of cervical disc herniation.Results:The annulus fibrosus in the left posterolateral herniated area of the intervertebral disc moved in a clockwise pronation direction under the loading of flexion+right rotation and extension+right rotation.The annulus fibrosus of the left posterolateral herniated area of the intervertebral disc moved counterclockwise under the loading of flexion+left rotation,extension+left rotation.The displacement of the annulus fibrosus in the disc herniation area was 0.5459 mm and 0.6765 mm under the loading of flexion+left rotation and flexion+right rotation,respectively.The displacement values of the annulus fibrosus in the protruding area were 0.6631 mm and 0.6040 mm under the loading of extension+left rotation and extension+right rotation,respectively.The pressure values of nucleus pulposus under flexion+left rotation and flexion+right rotation were 0.1364 MPa and 0.1256 MPa under the loading of flexion+left rotation and flexion+right rotation,respectively.The pressure values of nucleus pulposus were 0.1937 MPa and 0.1478 MPa under the load of extension+left rotation and extension+right rotation,respectively.Conclusion:Rotating forward flexion forward to the healthy side can effectively alleviate the clinical symptoms of patients with cervical disc herniation,and then extending to the affected side may aggravate the symptoms,which is not conducive to the rehabilitation and treatment of patients with cervical disc herniation.
作者
田甜
秦明芳
陈龙豪
韦贵康
兰秋敏
周红海
TIAN Tian;QIN Mingfang;CHEN Longhao;WEI Guikang;LAN Qiumin;ZHOU Honghai(Guangxi University of Chinese Medicine,Nanning 530200,China;Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine,Nanning 530011,China;College of Orthopedics and Traumatology,Guangxi University of Chinese Medicine,Nanning 530001,China)
出处
《中国中医骨伤科杂志》
CAS
2023年第10期35-39,共5页
Chinese Journal of Traditional Medical Traumatology & Orthopedics
基金
广西研究生教育创新计划资质项目(YCXJ2021113)
广西自然科学基金项目(2022JJA140723,2022JJB140428)
广西高校中青年教师科研基础能力提升项目(2022KY0272)
广西高等教育本科教学改革工程项目(2021JGZ129)。
关键词
复合运动
颈椎
椎间盘突出
有限元
生物力学
compound movement
cervical vertebrae
disc herniation
finite element
biomechanics
