Biomechanical Properties of the Superior Sagittal Sinus-Bridging Vein Complex

Traumatic brain injury is frequently simulated using finite element models (FEMs) of the head. The strength of a FEM of the head is dependent on the use of correct material characteristics, experimentally derived for each intracranial tissue. One such tissue is the parasagittal bridging veins (BV). The veins are prone to rupture in their subdural portion upon head impact, giving rise to an acute subdural hematoma (ASDH). The junction of these veins to the superior sagittal sinus (SSS) has been described as an area with distinct vein wall architecture. To understand the biomechanical characteristics of ASDH, the SSS-BV complex was studied by loading BVs with small strips of SSS attached from fresh cadavers to failure in a tensile test. A mixed-model multivariate analysis of variance (MANOVA) was used to study correlations and strain rate sensitivity of the parameters analyzed. No strain rate sensitivity was found. The biomechanical response of the SSS-BV unit in this study was found to be stiffer than reported biomechanical behavior of bridging veins. It was concluded that the SSS-BV junction plays an important role in bridging vein rupture, and warrants further investigation.

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  • Authors:
    • Delye, Hans
    • Goffin, Jan
    • Verschueren, Peter
    • Vander Sloten, Jos
    • Van der Perre, Georges
    • Alaerts, Herwig
    • Verpoest, Ignaas
    • Berckmans, Daniel
  • Conference:
  • Publication Date: 2006-11

Language

  • English

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  • Accession Number: 01046257
  • Record Type: Publication
  • ISBN: 139780768018295
  • Files: TRIS
  • Created Date: Apr 19 2007 2:26PM