Abstract
Endoscopy is increasingly used for intra ventricular surgeries such as hydrocephalus and tumor removal (Miwa et al. 2015 Miwa T, Hayashi N, Endo S, Ohira T. 2015. Neuroendoscopic biopsy and the treatment of tumor-associated hydrocephalus of the ventricular and paraventricular region in pediatric patients: a nationwide study in Japan. Neurosurg Rev.[Crossref], [PubMed], [Web of Science ®], , [Google Scholar]). Robotic based surgeries are more and more developed to control the trajectory and the movement of the endoscope and then to enhance the accuracy of surgical procedures and to reduce post-operative issues. The use of computer- aided robot is then well-suited to accurately reach ventricles cavities through the brain parenchyma and to minimize cerebral damage caused by the movement of the endoscope. On a mechanical point of view, moderate and severe traumatic brain injury (TBI) had a 50% risk to locally occur when Von Mises stress respectively exceeds 18 and 38 kPa (Willinger & Baumgartner 2003 Willinger R, Baumgartner D. 2003. Human head tolerance limits to specific injury mechanisms. Int J Crashworthiness.[Taylor & Francis Online], , [Google Scholar]). The purpose of this study was to assess the Von Mises stress generated in the brain by the endoscopic movement.
Highlights
Endoscopy is increasingly used for intra ventricular surgeries such as hydrocephalus and tumor removal (Miwa et al 2015).Robotic based surgeries are more and more developed to control the trajectory and the movement of the endoscope and to enhance the accuracy of surgical procedures and to reduce post-operative issues
The generated Von Mises stress was mapped on the 3D geometry of the model until the 70th second
The maximal Von Mises stress locally reached at this step of the simulation was 23 kPa, which corresponds to about 90% of risk of moderate neurological lesions and less than 10% to get a severe traumatic brain injury (TBI) (Willinger & Baumgartner, 2003)
Summary
Endoscopy is increasingly used for intra ventricular surgeries such as hydrocephalus and tumor removal (Miwa et al 2015). Robotic based surgeries are more and more developed to control the trajectory and the movement of the endoscope and to enhance the accuracy of surgical procedures and to reduce post-operative issues. The use of computer- aided robot is well-suited to accurately reach ventricles cavities through the brain parenchyma and to minimize cerebral damage caused by the movement of the endoscope. On a mechanical point of view, moderate and severe traumatic brain injury (TBI) had a 50% risk to locally occur when Von Mises stress respectively exceeds 18 and 38 kPa (Willinger & Baumgartner 2003). The purpose of this study was to assess the Von Mises stress generated in the brain by the endoscopic movement
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