Three-dimensional Finite Element Analysis of Biomechanical Effect of Rigid Fixation and Elastic Fixation on Lumbar Interbody Fusion / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 316-320, 2015.
Article
in Chinese
| WPRIM
| ID: wpr-266679
ABSTRACT
This study was aimed to compare the mechanical characteristics under different physiological load conditions with three-dimensional finite element model of rigid fixation and elastic fixation in the lumbar. We observed the stress distribution characteristics of a sample of healthy male volunteer modeling under vertical, flexion and extension torque situation. The outcomes showed that there existed 4-6 times pressure on the connecting rod of rigid fixation compared with the elastic fixations under different loads, and the stress peak and area of force on elastic fixation were much higher than that of the rigid fixations. The elastic fixation has more biomechanical advantages than rigid fixation in promoting interbody lumbar fusion after surgery.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pressure
/
Spinal Fusion
/
General Surgery
/
Biomechanical Phenomena
/
Range of Motion, Articular
/
Finite Element Analysis
/
Lumbar Vertebrae
/
Models, Theoretical
Limits:
Humans
/
Male
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2015
Type:
Article
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