LUMBAR SPONDYLOLYSIS:A BIOMECHANICAL STUDY
- VernacularTitle:腰椎椎弓峡部裂的生物力学研究
- Author:
Liyang DAI
- Publication Type:Journal Article
- Keywords:
lumbar spine;
spondylolysis;
spondylolisthesis;
biomechanics;
finite element method
- From:
Chinese Journal of Sports Medicine
1982;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
A mechanical model was constructed with three-dimensional finite element method to analyse the statusof stress distribution in the isthmus of the neural arch. It was found that the stress concentrate significantlyin the isthmus with spine upright. flexed and extended, and most obviously in extension position. The auth-ors conclude that spondylolysis is mainly the fatigue fracture due to locally increased stress and is contribut-ing most by backward extension of lumbar spine.
