Mechanical properties of bovine pia–arachnoid complex in shear

Jin, Xin; Yang, King H.; King, Albert I.

doi:10.1016/j.jbiomech.2010.09.035

Cited by 43 publications

(21 citation statements)

References 41 publications

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“…The mechanical role of the delicate structures in the subarachnoid space is not considered. Though the material properties of the pia-arachnoid complex of bovine have been tested in in-plane tension, 47 normal traction, and in shear, 48 it remains hard to use these mechanical information in a convincing way without the details of geometric…”

Section: Journal Of Neurotraumamentioning

confidence: 99%

Biomechanics of Acute Subdural Hematoma in the Elderly: A Fluid-Structure Interaction Study

Zhou

Kleiven

2019

Journal of Neurotrauma

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Acute subdural hematoma (ASDH) due to bridging vein (BV) rupture is a frequent and lethal head injury, especially in the elderly. Brain atrophy has been hypothesized to be a primary pathogenesis associated with the increased risk of ASDH in the elderly. Though decades of biomechanical endeavours have been made to elucidate the potential mechanisms, a thorough explanation for this hypothesis appears lacking. Thus, a recently improved finite element head model, in which the brain-skull interface was modelled using a fluid-structure interaction (FSI) approach with special treatment of the cerebrospinal fluid as arbitrary Lagrangian-Eulerian fluid formulation, is used to partially address this understanding gap. Models with various degrees of atrophied brains and thereby different subarachnoid thicknesses are generated and subsequently exposed to experimentally determined loadings known to cause ASDH or not. The results show significant increases in the cortical relative motion and BV strain in the atrophied brain, which consequently exacerbates the ASDH risk in the elderly. Results of this study are suggested to be considered while developing age-adapted protecting strategies for the elderly in the future.

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Section: Journal Of Neurotraumamentioning

confidence: 99%

Biomechanics of Acute Subdural Hematoma in the Elderly: A Fluid-Structure Interaction Study

Zhou

Kleiven

2019

Journal of Neurotrauma

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“…To determine the stiffness of the collagen fibers (c 3 and c 4 ) for the pia mater and dura mater, we used experimental published data. [50][51][52] In brief, data describing the stress-strain response of the pia mater and dura mater were digitized and fit to a Mooney-Rivlin solid with collagen fibers following a transverse isotopic distribution (k f ¼ 0).…”

Section: Tissue Mechanical Modelsmentioning

confidence: 99%

Finite Element Modeling of Factors Influencing Optic Nerve Head Deformation Due to Intracranial Pressure

Feola

Myers

Raykin

et al. 2016

Invest. Ophthalmol. Vis. Sci.

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“…For piaarachnoid structures, Jin et al [27,28] tested the bovine piaarachnoid (PAC) complex in vitro and demonstrated that the PAC provided both traction and shear resistance. The dura mater, which connects the inner skull to the arachnoid, is composed of the periosteal dura, meningeal dura, and durai border cells.…”

Section: Skull-brain Interface Modelingmentioning

confidence: 99%

Development of a Finite Element Human Head Model Partially Validated With Thirty Five Experimental Cases

Mao¹,

Zhang

Jiang

et al. 2013

Journal of Biomechanical Engineering

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310

207

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This study is aimed to develop a high quality, extensively validated finite element (FE) human head model for enhanced head injury prediction and prevention. The geometry of the model was based on computed tomography (CT) and magnetic resonance imaging scans of an adult male who has the average height and weight of an American. A feature-based multiblock technique was adopted to develop hexahedral brain meshes including the cerebrum, cerebellum, brainstem, corpus callosum, ventricles, and thalamus. Conventional meshing methods were used to create the bridging veins, cerebrospinal fluid, skull, facial bones, flesh, skin, and membranes-including falx, tentorium, pia, arachnoid, and dura. The head model has 270,552 elements in total. Thirty five loading cases were selected from a range of experimental head impacts to check the robustness of the model predictions based on responses including the brain pressure, relative skull-brain motion, skull response, and facial response. The brain pressure was validated against intracranial pressure data reported by Nahum et al. (1977, "Intracranial Pressure Dynamics During Head Impact," Proc. 21st Stapp Car Crash Conference, SAE Technical Paper No. 770922) and Trosseille et al. (1992, "Development of a F.E.M. of the Human Head According to a Specific Test Protocol," Proc. 36th Stapp Car Crash Conference, SAE Technical Paper No. 922527). The brain motion was validated against brain displacements under sagittal, coronal, and horizontal blunt impacts performed by Hardy et al. (2001, "Investigation of Head Injury Mechanisms Using Neutral Density Technology and High-Speed Biplanar X-Ray," Stapp Car Crash Journal, 45, pp. 337-368; and 2007, "A Study of the Response of the Human Cadaver Head to Impact," Stapp Car Crash Journal, 51, pp. 17-80). The facial bone responses were validated under nasal impact (Nyquist et al. 1986, "Facial Impact Tolerance and Response," Proc. 30th Stapp Car Crash Conference, SAE Technical Paper No. 861896), zygoma and maxilla impact (Allsop et al. 1988, "Facial Impact Response - A Comparison of the Hybrid III Dummy and Human Cadaver," Proc. 32nd Stapp Car Crash Conference, SAE Technical Paper No. 881719)]. The skull bones were validated under frontal angled impact, vertical impact, and occipital impact (Yoganandan et al. 1995, "Biomechanics of Skull Fracture," J Neurotrauma, 12(4), pp. 659-668) and frontal horizontal impact (Hodgson et al. 1970, "Fracture Behavior of the Skull Frontal Bone Against Cylindrical Surfaces," 14th Stapp Car Crash Conference, SAE International, Warrendale, PA). The FE head model was further used to study injury mechanisms and tolerances for brain contusion (Nahum et al. 1976, "An Experimental Model for Closed Head Impact Injury," 20th Stapp Car Crash Conference, SAE International, Warrendale, PA). Studies from 35 loading cases demonstrated that the FE head model could predict head responses which were comparable to experimental measurements in terms of pattern, peak values, or time histories. Furthermore, tissue-level injury tolera...

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Mechanical properties of bovine pia–arachnoid complex in shear

Cited by 43 publications

References 41 publications

Biomechanics of Acute Subdural Hematoma in the Elderly: A Fluid-Structure Interaction Study

Biomechanics of Acute Subdural Hematoma in the Elderly: A Fluid-Structure Interaction Study

Finite Element Modeling of Factors Influencing Optic Nerve Head Deformation Due to Intracranial Pressure

Development of a Finite Element Human Head Model Partially Validated With Thirty Five Experimental Cases

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