Abstract:
:A ligamentous, nonlinear, sliding contact, three-dimensional finite element (FE) model of L2-L3 complex was developed to investigate the biomechanical effect of laminectomy with and without facetectomy. The L2-L3 FE model was validated against experimental study under various physiological loadings and found to match well with the experimental data. Four iatrogenic models (unilateral laminectomy, unilateral laminectomy with unilateral facetectomy, unilateral laminectomy with bilateral facetectomy and total bilateral laminectomy) were evaluated under flexion, extension, torsion, lateral bending, anterior and posterior shear load vectors to determine alterations in kinematics and annulus stress. Results show that total laminectomy with facetectomy induces considerable increase in motion and annulus stress, except for lateral bending, whereas unilateral laminectomy shows the least increases.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Lee KK,Teo ECdoi
10.1016/j.medengphy.2003.11.006subject
Has Abstractpub_date
2004-04-01 00:00:00pages
183-92issue
3eissn
1350-4533issn
1873-4030pii
S1350453303001978journal_volume
26pub_type
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