The Barrow Biomimetic Spine: Fluoroscopic Analysis of a Synthetic Spine Model Made of Variable 3D-printed Materials and Print Parameters

Spine
Michael A BohlU Kumar Kakarla

Abstract

Objective and subjective fluoroscopic assessments of a new synthetic spine model. The aim of this study was to analyze the fluoroscopic performance and fidelity to human tissue of a new synthetic spine model. The Barrow Biomimetic Spine project aims to develop a 3-dimensional (3D) printed, synthetic spine model that will one day replace cadaveric tissue in spine biomechanical research. A crucial component to any biomimetic spine model is that it performs similarly to cadaveric tissue on standard diagnostic imaging modalities. Numerous L5 vertebral bodies (VBs) were 3D printed with variable shell thicknesses and internal densities, and fluoroscopic images were taken of these models to measure cortical thickness and gray-scale density. An L3-L5 spinal segment was then printed, and fluoroscopic films were obtained at variable C-arm angles. Three spine surgeons subjectively scored these images for human fidelity. Pedicle screws were then placed into the L3-L5 segment to demonstrate successful or breached placement. Standard anteroposterior (AP) and lateral films were taken, and three spine surgeons were tested and scored on correctly identifying screw placement. Cortical thickness and gray-scale density testing demonstrated an upwa...Continue Reading

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Citations

Feb 7, 2020·Simulation in Healthcare : Journal of the Society for Simulation in Healthcare·Philipp StefanSimon Weidert
Nov 20, 2019·Operative Neurosurgery·Michael A BohlU Kumar Kakarla
May 22, 2020·Global Spine Journal·Michael A BohlU Kumar Kakarla
Apr 22, 2020·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·William CliftonMark Pichelmann

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