Abstract

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Title:: Biomechanical research progress on lumbar intervertebral disc degeneration and effects of different loads

Author(s):: ZHAO Xiyun1; 2; WEN Meng3; GAO Guodong1; QUAN Zhen1; 2; WANG Zhipeng1; 2; ZHANG Hongwei1; QIN Daping1; 2; ZHANG Xiaogang1; 2; 1. Affiliated Hospital of Gansu University of Chinese Medicine, Lanzhou 730020, China 2. Gansu University of Chinese Medicine, Lanzhou 730000, China 3. Gansu Health Vocational College, Lanzhou 730207, China

Keywords:: Keywords: intervertebral disc intervertebral disc degeneration nucleus pulposus fiber ring load biomechanics review

Abstract:: Abstract: Biomechanical factors are the main causes of lumbar intervertebral disc degeneration. The interaction of components in the healthy intervertebral disc enables it to adapt to various complex motion states, transfer and bear loads at the same time, and maintain the stability and flexibility of the lumbar spine. With the degeneration of the lumbar intervertebral disc, the stress distribution in the internal structure of the intervertebral disc changes correspondingly, affecting the biomechanical balance of the lumbar spine, and ultimately leading to low back pain. Therefore, it is important to analyze the biomechanical states of the lumbar intervertebral disc and its corresponding motion segments, and clarify the mechanical mechanism of the stress, strain and displacement in the intervertebral disc caused by the degenerative disc. The study presents an overview on the structure and biomechanical characteristics of the lumbar intervertebral disc, the histological characteristics of the degenerative disc, and the finite element modeling of the degenerative disc and its application, and further analyzes the internal force distributions of the intervertebral disc under different motion loads (compression, flexion, extension, rotation and various complex motion modes), aiming to provide important mechanic information for the treatment scheme formulation.