Regional Variation for Morphology and Mechanical Characteristics of Vertebral Trabecular Bone Analysed Using Micro-Computed Tomography and Micro Finite Element Analysis

2009 ◽  
Author(s):  
C.Y. Ko ◽  
T.W. Lee ◽  
D.G. Woo ◽  
H.S. Kim
Keyword(s):  
Computed Tomography ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Trabecular Bone ◽  
Regional Variation ◽  
Mechanical Characteristics ◽  
Micro Computed Tomography ◽  
Element Analysis ◽  
Vertebral Trabecular Bone

Contribution of Three-Dimensional Trabecular Bone Microstructure of the Proximal Femur to its Mechanical Properties as Assessed by Micro-Finite Element Analysis

2006 ◽  
Vol 321-323 ◽  
pp. 278-281
Author(s):  
Wen Quan Cui ◽  
Ye Yeon Won ◽  
Myong Hyun Baek ◽  
Kwang Kyun Kim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Trabecular Bone ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Bone Microarchitecture ◽  
Element Model ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Element Analysis

The purpose of this study was to investigate the contribution of the microstructural properties of trabecular bone in predicting its elastic modulus in the intertrochanteric region. A total of 15 trabecular bone core specimens were obtained from the proximal femurs of patients undergoing total hip arthroplasty. The micro-computed tomography (micro-CT) was used to scan each specimen to obtain micro-morphology. Microstructural parameters were directly calculated using software. Micro-CT images were converted to micro-finite element model using meshing technique, and then micro-finite element analysis (FEA) was performed to assess the mechanical property (Young’s modulus) of trabecular bone. The results showed that the ability to explain this variance of Young’s modulus is improved by combining the structural indices with each other. It suggested that assessment of bone microarchitecture should be added as regards detection of osteoporosis and evaluation of the efficacy of drug treatments for osteoporosis.

Simulation of vertebral trabecular bone loss using voxel finite element analysis

2009 ◽  
Vol 42 (16) ◽  
pp. 2789-2796 ◽  
Author(s):  
P. Mc Donnell ◽  
N. Harrison ◽  
M.A.K. Liebschner ◽  
P.E. Mc Hugh
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bone Loss ◽  
Trabecular Bone ◽  
Element Analysis ◽  
Vertebral Trabecular Bone ◽  
Trabecular Bone Loss

Modeling Dental Implants With Finite Element Analysis and Micro-Computed Tomography

2009 ◽  
Author(s):  
Naomi Tsafnat
Keyword(s):  
Computed Tomography ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Structural Response ◽  
Micro Computed Tomography ◽  
Element Analysis ◽  
Numerical Modeling And Simulation ◽  
Non Destructive ◽  
Digital Nature

X-ray micro-computed tomography (microCT) allows us to construct three-dimensional images of specimens at the micron scale in a non-destructive manner. The digital nature of the microCT images, which are in voxel form, make them ideal candidates for use in numerical modeling and simulation [1]. Finite element analysis (FEA) is a well-known technique for modeling the structural response of a system to mechanical loading, and is most useful in modeling complex systems which cannot be analyzed analytically. MicroCT datasets can be converted into finite element models, directly incorporating both the geometry of the specimen and information about the different materials in it. This method is known as micro-finite element analysis (microFEA). It is especially useful in the study of materials with complex microstructures.

scholarly journals Predicting mouse vertebra strength with micro-computed tomography-derived finite element analysis

2015 ◽  
Vol 4 ◽  
Author(s):  
Jeffry S Nyman ◽  
Sasidhar Uppuganti ◽  
Alexander J Makowski ◽  
Barbara J Rowland ◽  
Alyssa R Merkel ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Micro Computed Tomography ◽  
Element Analysis

scholarly journals Torque Comparison Between Two Passive Self-Ligating Brackets with Respect to Interbracket Wire Dimensions and Types: A Finite Element Analysis

2021 ◽  
pp. 030157422110296
Author(s):  
Balan K Thushar ◽  
Anirudh K Mathur ◽  
Rajasri Diddige ◽  
Shubhnita Verma ◽  
Prasad Chitra
Keyword(s):  
Computed Tomography ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stainless Steel ◽  
Wire Length ◽  
Micro Computed Tomography ◽  
Element Analysis ◽  
Torque Values

Objective: This study aimed to analyze the expression of torque between 2 passive self-ligating brackets by simulating different clinical situations using finite element analysis. Material and Methods: Two passive self-ligating brackets, that is, Damon Q (Ormco, Glendora, California) and Smart Clip (3M Unitek, Monrovia, California), were 3D modeled using micro-computed tomography. ANSYS V14.5 software was used for analysis. Archwire and bracket interactions were simulated to measure torque expression by changing wire alloys (stainless steel [SS] and titanium molybdenum [TMA]) and interbracket dimensions. Results: Damon Q brackets generated higher torque values compared to Smart Clip brackets with both SS and TMA wires. Damon Q brackets generated the highest torquing moment of 25.72 Nmm and 7.45 Nmm, while Smart Clip brackets generated 22.25 Nmm and 7.31 Nmm with 0.019 × 0.025″ SS and TMA wires, respectively, at an interbracket distance of 12 mm. Torquing moments decreased for Damon Q and Smart Clip brackets when wire length increased from 12 mm to 16 mm. Conclusion: Damon Q with 0.019 × 0.025″wires exhibited superior torquing characteristics as compared to Smart Clip brackets with similar archwires.

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