2004
DOI: 10.1109/tbme.2003.820994
|View full text |Cite
|
Sign up to set email alerts
|

Finite-Element Analysis for Lumbar Interbody Fusion Under Axial Loading

Abstract: A parametric study was conducted to evaluate axial stiffness of the interbody fusion, compressive stress, and bulging in the endplate due to changes in the spacer position with/without fusion bone using an anatomically accurate and validated L2-L3 finite-element model exercised under physiological axial compression. The results show that the spacer plays an important role in initial stability for fusion, and high compressive force is predicted at the ventral endplate for the models with the spacer and fusion b… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
27
0

Year Published

2006
2006
2019
2019

Publication Types

Select...
6
2

Relationship

0
8

Authors

Journals

citations
Cited by 38 publications
(27 citation statements)
references
References 25 publications
0
27
0
Order By: Relevance
“…Several trials have noted that CT is better than plain radiographs for assessing fusion, whether metallic or non-metallic interbody cages are used. Although the consensus is that thin-section helical CT is the best technique for identifying bony bridging, there is concern that it may overestimate its presence if carried out early after surgery [26,27,28] . Hence for our prospective trial we used plain CT to evaluate the Fusion.…”
Section: Discussionmentioning
confidence: 99%
“…Several trials have noted that CT is better than plain radiographs for assessing fusion, whether metallic or non-metallic interbody cages are used. Although the consensus is that thin-section helical CT is the best technique for identifying bony bridging, there is concern that it may overestimate its presence if carried out early after surgery [26,27,28] . Hence for our prospective trial we used plain CT to evaluate the Fusion.…”
Section: Discussionmentioning
confidence: 99%
“…The material properties of the INT model are listed in (Table 1) and were chosen from previous studies [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. All seven ligaments were simulated by ten node link elements with resistance tension only, and they were arranged in the anatomical direction given by the text book [54]; the cross-sectional area of each ligament was obtained from previous studies [47,[52][53][54].…”
Section: Experimental Fe Model Of Intact L4-l5 Segment Lumbar Spine (mentioning
confidence: 99%
“…The nucleus pulposus was modeled as an incompressible fluid with bulk modulus of 1MPa by an ten-node fluid element [45][46][47][48][49][50][51][52][53]. The facet joint was treated as a sliding contact problem using surface-to-surface contact elements, and the coefficient of friction was set at 0.1 [55][56]. The FE model of the intact L4-L5 segment lumbar spine consisted of 199,689 elements and 32,7621 nodes (Fig.…”
Section: Experimental Fe Model Of Intact L4-l5 Segment Lumbar Spine (mentioning
confidence: 99%
“…The material properties of the INT model are listed in Table 1 and were chosen from previous studies [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. All seven ligaments were simulated by ten node link elements with resistance tension only, and they were arranged in the anatomical direction given by the text book [54]; the cross-sectional area of each ligament was obtained from previous studies [47,[52][53][54].…”
Section: Normal Discmentioning
confidence: 99%
“…All seven ligaments were simulated by ten node link elements with resistance tension only, and they were arranged in the anatomical direction given by the text book [54]; the cross-sectional area of each ligament was obtained from previous studies [47,[52][53][54]. A ten-node solid element was used for modeling the annulus ground substance.…”
Section: Normal Discmentioning
confidence: 99%