Date of download: 12/21/2017 Copyright © ASME. All rights reserved. From: Finite Element Lumbar Spine Facet Contact Parameter Predictions are Affected by the Cartilage Thickness Distribution and Initial Joint Gap Size J Biomech Eng. 2011;133(6):061009-061009-7. doi:10.1115/1.4004287 Figure Legend: Cross-sectional view of the finite element cartilage representations at the L4–L5 level. The constant thickness model (left) was created by extruding 1.25 mm of cartilage from the subchondral surfaces. The variable thickness model (right) utilized a mathematical fit function to describe the shape of the cartilage layer on each facet surface.
Date of download: 12/21/2017 Copyright © ASME. All rights reserved. From: Finite Element Lumbar Spine Facet Contact Parameter Predictions are Affected by the Cartilage Thickness Distribution and Initial Joint Gap Size J Biomech Eng. 2011;133(6):061009-061009-7. doi:10.1115/1.4004287 Figure Legend: Range of motion predictions were minimally affected by differences in the facet cartilage thickness distribution and gap width
Date of download: 12/21/2017 Copyright © ASME. All rights reserved. From: Finite Element Lumbar Spine Facet Contact Parameter Predictions are Affected by the Cartilage Thickness Distribution and Initial Joint Gap Size J Biomech Eng. 2011;133(6):061009-061009-7. doi:10.1115/1.4004287 Figure Legend: Mean contact pressure predictions. The constant thickness cartilage model variant was not as sensitive to changes in the facet joint gap width as compared to the variable thickness cartilage representation.
Date of download: 12/21/2017 Copyright © ASME. All rights reserved. From: Finite Element Lumbar Spine Facet Contact Parameter Predictions are Affected by the Cartilage Thickness Distribution and Initial Joint Gap Size J Biomech Eng. 2011;133(6):061009-061009-7. doi:10.1115/1.4004287 Figure Legend: Total facet contact force results. In general, smaller initial facet gaps resulted in higher predicted contact forces.
Date of download: 12/21/2017 Copyright © ASME. All rights reserved. From: Finite Element Lumbar Spine Facet Contact Parameter Predictions are Affected by the Cartilage Thickness Distribution and Initial Joint Gap Size J Biomech Eng. 2011;133(6):061009-061009-7. doi:10.1115/1.4004287 Figure Legend: Total facet contact area predictions. The data mirror the contact force predictions; facet gaps resulted in higher contact areas.