机构：[1]School of Traditional Chinese Medicine, Southern Medical University, No.1838, Guangzhou Avenue North, BaiYun District, Guangzhou 510515,Guangdong Province, China.[2]Department of Spine Surgery, The FirstAffiliated Hospital of University of South China, Hengyang 421000, HunanProvince, China.[3]ShenZhen Traditional Chinese Medicine Hospital, Shenzhen,Guangdong, PR China.
Clinical studies have found that manipulations have a good clinical effect on sacroiliac joint (SIJ) pain without specific causes. However, the specific mechanisms underlying the effect of manipulations are still unclear. The purpose of this study was to investigate the effects of three common manipulations on the stresses and displacements of the normal SIJ and the strains of the surrounding ligaments.
A three-dimensional finite element model of the pelvis-femur was developed. The manipulations of hip and knee flexion (MHKF), oblique pulling (MOP), and lower limb hyperextension (MLLH) were simulated. The stresses and displacements of the SIJ and the strains of the surrounding ligaments were analyzed during the three manipulations.
MOP produced the highest stress on the left SIJ, at 6.6 MPa, while MHKF produced the lowest stress on the right SIJ, at 1.5 MPa. The displacements of the SIJ were all less than 1 mm during the three manipulations. The three manipulations caused different degrees of ligament strain around the SIJ, and MOP produced the greatest straining of the ligaments.
The three manipulations all produced small displacements of the SIJ and different degrees of ligament strains, which might be the mechanism through which they relieve SIJ pain. MOP produced the largest displacement and the greatest ligament strains.
基金：
the National Natural Science Foundation of
China (grant number 81674095).
第一作者机构：[1]School of Traditional Chinese Medicine, Southern Medical University, No.1838, Guangzhou Avenue North, BaiYun District, Guangzhou 510515,Guangdong Province, China.[2]Department of Spine Surgery, The FirstAffiliated Hospital of University of South China, Hengyang 421000, HunanProvince, China.
通讯作者：
推荐引用方式(GB/T 7714)：
Xu Zhun,Li Yikai,Zhang Shaoqun,et al.A finite element analysis of sacroiliac joint displacements and ligament strains in response to three manipulations.[J].BMC MUSCULOSKELETAL DISORDERS.2020,21(1):doi:10.1186/s12891-020-03735-y.
APA：
Xu Zhun,Li Yikai,Zhang Shaoqun,Liao Liqing,Wu Kai...&Li Dan.(2020).A finite element analysis of sacroiliac joint displacements and ligament strains in response to three manipulations..BMC MUSCULOSKELETAL DISORDERS,21,(1)
MLA：
Xu Zhun,et al."A finite element analysis of sacroiliac joint displacements and ligament strains in response to three manipulations.".BMC MUSCULOSKELETAL DISORDERS 21..1(2020)
