Reconstruction of Head Injury Cases Arising from Falls Using the UCD Brain Trauma Model

Doorly, Mary C.; Horgan, TJ; Gilchrist, Michael D.

doi:10.1007/1-4020-3796-1_44

Cited by 8 publications

(7 citation statements)

References 14 publications

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“…However, when a number of these techniques are used in complement to each other, it is possible to reduce levels of uncertainty, thereby increasing the accuracy and quality of analyses. This topic has been a subject of research in University College Dublin over the past decade which has involved the use of idealised and anatomically realistic two-dimensional [1][2][3][4][5] and three-dimensional [6][7][8][9][10][11][12][13] finite element computational models, in-depth accident reconstruction techniques [14][15][16][17][18][19], and laboratory experimentation [20][21][22][23]. During the course of this research, we have provided free and direct access to detailed three-dimensional finite element head models [7,10,12] and Matlab code for automatically constructing hexahedral finite element meshes [24,25] from sets of digitised data which is typically in the form of either CT or MRI scans, for research purposes.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional multibody dynamics analysis of accidental falls resulting in traumatic brain injury

Doorly

Gilchrist

2009

International Journal of Crashworthiness

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Clinical, physical and mechanical details of one of a set of ten real world accidental falls which resulted in non-fatal head impact injury in the form of various traumatic brain lesions are presented herein. These are analysed and described in depth in the present paper, along with the accompanying time profiles of linear and angular velocities of all ten accident cases, which were predicted using multibody dynamics modelling simulations. It is suggested that these cases could usefully constitute the basis of a database of documented head injury cases that may be of use to the wider research community. As such, these are freely available to researchers who would wish to use this set of data, upon direct request to the authors.

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Section: Introductionmentioning

confidence: 99%

Three-dimensional multibody dynamics analysis of accidental falls resulting in traumatic brain injury

Doorly

Gilchrist

2009

International Journal of Crashworthiness

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“…Our measurement of 3 to 4 mm scalp thickness derived from an automatic software-based calculation corresponds well to data taken from literature and measurements performed on the CT-scan [30, 31]. Additionally, facial soft tissues were modelled as one material and was not divided into skin, fat, and muscle.…”

Section: Discussionmentioning

confidence: 64%

Does facial soft tissue protect against zygomatic fractures? Results of a finite element analysis

et al. 2015

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IntroductionZygomatic fractures form a major entity in craniomaxillofacial traumatology. Few studies have dealt with biomechanical basics and none with the role of the facial soft tissues. Therefore this study should investigate, whether facial soft tissue plays a protecting role in lateral midfacial trauma.MethodsA head-to-head encounter was simulated by way of finite element analysis. In two scenarios this impact - with and without soft tissues - was investigated to demonstrate the potential protective effects. To achieve realism, a transient simulation was chosen, which considers temporal dynamics and realistic material parameters derived from CT grey values.ResultsThe simulation results presented a typical zygomatic fracture with all relevant fracture lines. Including soft tissues did not change the maximum bony stress pattern, but increased the time period from impact to maximal stresses by 1.3 msec.ConclusionsAlthough this could have clinical implications, facial soft tissues may be disregarded in biomechanical simulations of the lateral midface, if only the bony structures are to be investigated. Soft tissue seems to act as a temporal buffer only.

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“…34 Researches for tissue-level tolerances usually involve accident reconstructions. [35][36][37] Usually dynamic simulations are performed to calculate those kinematic variables which acted on the head and later these loads are placed to the finite element head model to calculate the output variables. Since the clinical outcome of these accidents are known, the calculated stresses, strains and pressure values can be used to estimate human tissue-level tolerances.…”

Section: Eredeti Közleményekmentioning

confidence: 99%

Impact biomechanics of brain injuries: a proposal for evaluating vulnerability analysis

Hazay¹,

Bojtár²

2017

biomech hung

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Traumatic brain injuries (TBIs) contribute to a high degree of mortality and morbidity in society. From engineering point of view, the human brain can be considered as a mechanical system which is subjected to extreme effects, since every type of TBIs are derived from the large magnitude of mechanical loads. Impact biomechanics deals with the prevention of injuries via the suitable design of safety systems. It requires the quantification of limit values of the mechanical effects that humans can tolerate. The goal of this paper is twofold. Firstly, it contains a brief literature review where some of the most important milestones and major conclusions of previous researches are mentioned. Secondly, it presents a proposal about the applicability of reliability analysis to assess the vulnerability of the human brain.

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Reconstruction of Head Injury Cases Arising from Falls Using the UCD Brain Trauma Model

Cited by 8 publications

References 14 publications

Three-dimensional multibody dynamics analysis of accidental falls resulting in traumatic brain injury

Three-dimensional multibody dynamics analysis of accidental falls resulting in traumatic brain injury

Does facial soft tissue protect against zygomatic fractures? Results of a finite element analysis

Impact biomechanics of brain injuries: a proposal for evaluating vulnerability analysis

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