Biomechanical investigation of naso-orbitoethmoid trauma by finite element analysis

Huempfner-Hierl, Heike; Schaller, Andreas; Hemprich, Alexander; Hierl, Thomas

doi:10.1016/j.bjoms.2014.07.255

Cited by 19 publications

(8 citation statements)

References 15 publications

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“…Thus, an increased maximal vMs value is also associated with an increased risk of bone fracture. Other authors have also reported that high stress areas corresponded to high risk of fracture areas (Huempfner-Hierl et al, 2014. Our results prove that parietal bone defect increases the risk of skull fracture, and that an internal calvarial layer defect is associated with a higher risk of fracture.…”

Section: Fracture Risksupporting

confidence: 82%

Comparative finite element analysis of skull mechanical properties following parietal bone graft harvesting in adults

Haen

Dubois

Goudot

et al. 2018

Journal of Cranio-Maxillofacial Surgery

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Section: Fracture Risksupporting

confidence: 82%

Comparative finite element analysis of skull mechanical properties following parietal bone graft harvesting in adults

Haen

Dubois

Goudot

et al. 2018

Journal of Cranio-Maxillofacial Surgery

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“…The experiments are repeatable, there are no ethical considerations and the study designs may be modified and changed as per the requirement. 29 There are certain limitations of FEA too. It is a computerized in vitro study in which clinical condition may not be completely replicated.…”

Section: Resultsmentioning

confidence: 99%

Finite element analysis: A boon to dentistry

Trivedi

2014

Journal of Oral Biology and Craniofacial Research

164

104

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a b s t r a c tThe finite element analysis (FEA) is an upcoming and significant research tool for biomechanical analyses in biological research. It is an ultimate method for modeling complex structures and analyzing their mechanical properties. In Implantology, FEA has been used to study the stress patterns in various implant components and also in the peri-implant bone. It is also useful for studying the biomechanical properties of implants as well as IntroductionThe finite element analysis (FEA) is an upcoming and significant research tool for biomechanical analyses in biological research. It is an ultimate method for modeling complex structures and analyzing their mechanical properties. FEA has now become widely accepted as a non-invasive and excellent tool for studying the biomechanics and the influence of mechanical forces on the biological systems. It enables the visualization of superimposed structures, and the stipulation of the material properties of anatomic craniofacial structures. 1 It also allows to establish the location, magnitude, and direction of an applied force, as it may also assign stress points that can be theoretically measured. 2 Further, as it does not affect the physical properties of the analyzed materials it is easily repeatable. 2,3The finite element method (FEM) is basically a numerical method of analyzing stresses and deformations in the structures of any given geometry. The structure is discretized into the so called 'finite elements' connected through nodes. The type, arrangement and total number of elements impact the accuracy of the results. 4 The steps followed are generally constructing a finite element model, followed by specifying appropriate material properties, loading and boundary conditions so that the desired settings can be accurately simulated. Various engineering software packages are available to model and simulate the structure of interest may be implants or jawbone. Previously, when FEA was used in dentistry, various simplified assumptions were made regarding modeling geometry, load, boundaries and material properties.5 Such assumptions inevitably affected the analytical results. In the human body, there are individual variations with respect to E-mail address: shilpa.knp@gmail.com.Available online at www.sciencedirect.com ScienceDirect journal homepage: www.e lsevier.com/locate/jobcr j o u r n a l o f o r a l b i o l o g y a n d c r a n i o f a c i a l r e s e a r c h 4 ( 2 0 1 4 ) 2 0 0 e2 0 3http://dx

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“…Finite element simulation revealed von Mises stresses beyond the yield criterion of facial bone, which correlates with fractures at the site of impact [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

Maxillofacial fractures and craniocerebral injuries – stress propagation from face to neurocranium in a finite element analysis

Huempfner-Hierl

Schaller

Hierl

2015

Scand J Trauma Resusc Emerg Med

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BackgroundSevere facial trauma is often associated with intracerebral injuries. So it seemed to be of interest to study stress propagation from face to neurocranium after a fistlike impact on the facial skull in a finite element analysis.MethodsA finite element model of the human skull without mandible consisting of nearly 740,000 tetrahedrons was built. Fistlike impacts on the infraorbital rim, the nasoorbitoethmoid region, and the supraorbital arch were simulated and stress propagations were depicted in a time-dependent display.ResultsFinite element simulation revealed von Mises stresses beyond the yield criterion of facial bone at the site of impacts and propagation of stresses in considerable amount towards skull base in the scenario of the fistlike impact on the infraorbital rim and on the nasoorbitoethmoid region. When impact was given on the supraorbital arch stresses seemed to be absorbed.ConclusionsAs patients presenting with facial fractures have a risk for craniocerebral injuries attention should be paid to this and the indication for a CT-scan should be put widely. Efforts have to be made to generate more precise finite element models for a better comprehension of craniofacial and brain injury.Electronic supplementary materialThe online version of this article (doi:10.1186/s13049-015-0117-z) contains supplementary material, which is available to authorized users.

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Biomechanical investigation of naso-orbitoethmoid trauma by finite element analysis

Cited by 19 publications

References 15 publications

Comparative finite element analysis of skull mechanical properties following parietal bone graft harvesting in adults

Comparative finite element analysis of skull mechanical properties following parietal bone graft harvesting in adults

Finite element analysis: A boon to dentistry

Maxillofacial fractures and craniocerebral injuries – stress propagation from face to neurocranium in a finite element analysis

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