CLINICAL VERSUS PRE-CLINICAL FINITE ELEMENT MODELS FOR VERTEBRAL BODY STRENGTH PREDICTION

2012 ◽  
Vol 45 ◽  
pp. S525
Author(s):  
Dieter Pahr ◽  
Jakob Schwiedrzik ◽  
Philippe Zysset
Keyword(s):  
Finite Element ◽  
Vertebral Body ◽  
Strength Prediction ◽  
Finite Element Models ◽  
Body Strength

scholarly journals Improvements in Vertebral Body Strength Under Teriparatide Treatment Assessed In Vivo by Finite Element Analysis: Results From the EUROFORS Study

2009 ◽  
Vol 24 (10) ◽  
pp. 1672-1680 ◽  
Author(s):  
Christian Graeff ◽  
Yan Chevalier ◽  
Mathieu Charlebois ◽  
Peter Varga ◽  
Dieter Pahr ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vertebral Body ◽  
Element Analysis ◽  
Teriparatide Treatment ◽  
Body Strength

Effect of the Pedicle and Posterior Arch on Vertebral Body Strength Predictions in Finite Element Modeling

Spine ◽  
1998 ◽  
Vol 23 (8) ◽  
pp. 899-907 ◽  
Author(s):  
Cari M. Whyne ◽  
Serena S. Hu ◽  
Stephen Klisch ◽  
Jeffrey C. Lotz
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Vertebral Body ◽  
Posterior Arch ◽  
Element Modeling ◽  
Body Strength

scholarly journals Stress Analysis of Osteoporotic Lumbar Vertebra Using Finite Element Model with Microscaled Beam-Shell Trabecular-Cortical Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Yoon Hyuk Kim ◽  
Mengying Wu ◽  
Kyungsoo Kim
Keyword(s):  
Finite Element ◽  
Vertebral Body ◽  
Burst Fracture ◽  
Lumbar Vertebra ◽  
Von Mises Stress ◽  
Finite Element Models ◽  
Age Related ◽  
Complex Anatomy ◽  
Von Mises

Osteoporosis is a disease in which low bone mass and microarchitectural deterioration of bone tissue lead to enhanced bone fragility and susceptibility to fracture. Due to the complex anatomy of the vertebral body, the difficulties associated with obtaining bones for in vitro experiments, and the limitations on the control of the experimental parameters, finite element models have been developed to analyze the biomechanical properties of the vertebral body. We developed finite element models of the L2 vertebra, which consisted of the endplates, the trabecular lattice, and the cortical shell, for three age-related grades (young, middle, and old) of osteoporosis. The compressive strength and stiffness results revealed that we had developed a valid model that was consistent with the results of previous experimental and computational studies. The von-Mises stress, which was assumed to predict the risk of a burst fracture, was also determined for the three age groups. The results showed that the von-Mises stress was substantially higher under relatively high levels of compressive loading, which suggests that patients with osteoporosis should be cautious of fracture risk even during daily activities.

Influence of Angle Thickness towards Stiffness and Strength Prediction for Cold-Formed Steel Top-Seat Flange Cleat Connection

2013 ◽  
Vol 479-480 ◽  
pp. 1144-1148 ◽  
Author(s):  
Yeong Huei Lee ◽  
Cher Siang Tan ◽  
M.Md. Tahir ◽  
Shahrin Mohammad ◽  
Poi Ngian Shek ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modelling ◽  
Structural Integrity ◽  
Structural Performance ◽  
Design Stage ◽  
Strength Prediction ◽  
Finite Element Models ◽  
Steel Framing ◽  
Cold Formed Steel ◽  
Thin Walled

For the connection stiffness and strength prediction, Eurocode has showed an inadequacy as it will be affected by the thin-walled behaviour of cold-formed steel in actual structural performance. This paper performs a study on the connection stiffness prediction for cold-formed steel top-seat flange cleat connection with various angle thickness. Validated finite element modelling technique is applied for further advanced investigation. From the developed finite element models, it was realized that Eurocode has overestimated by the analytical stiffness prediction using component method for the studied connection which reduces the structural integrity in the design stage. A new proposal on connection stiffness prediction with influence of angle thickness for cold-formed steel top-seat flange cleat connection is presented to assist practicing engineers to design the cold-formed connection in light steel framing.

Prediction of vertebral body stiffness in patients with multiple myeloma using qCT-based finite element models

2013 ◽  
Author(s):  
Graeme Campbell ◽  
Christian Graeff ◽  
Sarah Giravent ◽  
Felix Thomsen ◽  
Jaime Pena ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Finite Element ◽  
Vertebral Body ◽  
Finite Element Models

ANATOMY- AND MORPHOLOGY-BASED SMOOTH FINITE ELEMENT MODELS OF THE VERTEBRAL BODY

2008 ◽  
Vol 41 ◽  
pp. S252 ◽  
Author(s):  
Yan Chevalier ◽  
Dieter Pahr ◽  
Philippe K. Zysset
Keyword(s):  
Finite Element ◽  
Vertebral Body ◽  
Finite Element Models
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