Biomechanical analysis of press-extension technique on degenerative lumbar with disc herniation and staggered facet joint.
This study investigates the effect of a new Chinese massage technique named "press-extension" on degenerative lumbar with disc herniation and facet joint dislocation, and provides a biomechanical explanation of this massage technique. Self-developed biomechanical software was used to establish a normal L1-S1 lumbar 3D FE model, which integrated the spine CT and MRI data-based anatomical structure. Then graphic technique is utilized to build a degenerative lumbar FE model with disc herniation and facet joint dislocation. According to the actual press-extension experiments, mechanic parameters are collected to set boundary condition for FE analysis. The result demonstrated that press-extension techniques bring the annuli fibrosi obvious induction effect, making the central nucleus pulposus forward close, increasing the pressure in front part. Study concludes that finite element modelling for lumbar spine is suitable for the analysis of press-extension technique impact on lumbar intervertebral disc biomechanics, to provide the basis for the disease mechanism of intervertebral disc herniation using press-extension technique.
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Hong-Gen
HG
Du
School of Information Science and Engineering, Central South University, 410083, China.
Sheng-Hui
SH
Liao
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Zhong
Z
Jiang
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Huan-Ming
HM
Huang
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Xi-Tao
XT
Ning
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Neng-Yi
NY
Jiang
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Jian-Wei
JW
Pei
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Qin
Q
Huang
Department of Tuina, Zhejiang Provincial Hospital of Traditional Chinese Medicine, Hangzhou 310006, China.
Hui
H
Wei
Biomechanics; Facet joint dislocation; Intervertebral disc; Massage technique