How does the traction force affect the intervertebral disc:a three dimensional finite element analysis
- VernacularTitle:牵引力对颈椎间盘作用的三维有限元分析
- Author:
Xueying LI
;
Chunming WANG
;
- Publication Type:Journal Article
- Keywords:
Cervical;
Intervertebral disc;
Traction;
Finite element analysis
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2003;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify the effective traction conditions by comparing the effects of traction forces on the intervertebral disc under various mechanical conditions. Methods A three dimensional finite element model was used to carry out mechanical analysis of the traction under conditions with different forces and angles, then to carry out the comparative analysis of the stress distribution and the change of the volume of the intervertebral disc. Results In general, the stress distribution on the intervertebral disc was not even under different traction forces, The maximum stresses appeared at the back rim of the intervertebral disc. With the increase of the traction force and angle, the enlargement of the intervertebral disc volume increased, and the enlargement rate was more significant. Conclusion The volume of the intervertebral disc can be most effectively enlarged at the condition of 30?forward bending of the neck when a force of 90N was applied. This is the most effective traction condition.
