Investigation on strain rate dependency in the biomechanical behaviour of the superior sagittal sinus – bridging vein complex

Asiminei, Aida G.<sup>1</sup>; Baeck, Katrien<sup>2</sup>; Verbeken, Eric<sup>3</sup>; Vander Sloten, Jos<sup>2</sup>; Goffin, Jan<sup>1</sup>

Affiliations

¹Department of Experimental Neurosurgery and Neuroanatomy, Katholieke Universiteit Leuven, Belgium

²Division of Biomechanics and Engineering Design, KU Leuven

³Morphology and Molecular Pathology Section, KU Leuven

Abstract and keywords

One of the most frequent head injuries resulting from cycling accidents is Acute Subdural Hematoma (ASDH). For nearly one third of the ASDH cases, the etiopathology directly relates to a bridging vein (BV) rupture. Therefore, a good description of the BV material behaviour is essential for clarifying the biomechanical characteristics of ASDH etiology following a head impact. This study focuses on describing the BV material behaviour under axial loading conditions at high strain rates. Finally, a comparison is made with published BV data at low strain rates to investigate a strain rate dependency. From the presented BV‐Superior Sagittal Sinus study, it follows that no strain rate sensitivity could be observed up to 20 s‐1. However, more tests at even higher strain rates need to be performed to draw a final conclusion.

Keywords: Acute Subdural Hematoma; parasagittal bridging veins; strain rate; tensile test

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Cited By (1)

Year	Entry
2013	Yanaoka T, Dokko Y. A parametric study of age-related factors affecting intracranial responses under impact loading using a human head/brain FE model. In: Proceedings of the 2013 International IRCOBI Conference on the Biomechanics of Injury. September 11-13, 2013; Gothenburg, Sweden.444-455.