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. 2019 Jun 23;10(4):419–424. doi: 10.1177/2192568219858981

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© The Author(s) 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Flexion-extension range of motion (ROM) at 6.0 N m for a synthetic spine model with horizontal print orientation (model C) and a synthetic spine model with vertical print orientation (model F), compared with mean ROM data for cadaveric controls. Model F was the only model printed with a vertical rather than horizontal print orientation and was equivalent to model C in all other variables. Error bars indicate standard deviation. Cadaveric control data adapted from Newcomb et al.⁵ Used with permission from Barrow Neurological Institute, Phoenix, Arizona.