The biomechanical implications of neck position in cervical contusion animal models of SCI

Large animal contusion models of spinal cord injury are an essential precursor to developing and evaluating treatment options for human spinal cord injury. Reducing variability in these experiments has been a recent focus as it increases the sensitivity with which treatment effects can be detected w...

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Main Authors: Numaira Obaid, Kazuhito Morioka, Eleni Sinopoulou, Yvette S. Nout-Lomas, Ernesto Salegio, Jacqueline C. Bresnahan, Michael S. Beattie, Carolyn J. Sparrey
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1152472/full
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author Numaira Obaid
Numaira Obaid
Kazuhito Morioka
Kazuhito Morioka
Eleni Sinopoulou
Yvette S. Nout-Lomas
Ernesto Salegio
Jacqueline C. Bresnahan
Michael S. Beattie
Carolyn J. Sparrey
Carolyn J. Sparrey
author_facet Numaira Obaid
Numaira Obaid
Kazuhito Morioka
Kazuhito Morioka
Eleni Sinopoulou
Yvette S. Nout-Lomas
Ernesto Salegio
Jacqueline C. Bresnahan
Michael S. Beattie
Carolyn J. Sparrey
Carolyn J. Sparrey
author_sort Numaira Obaid
collection DOAJ
description Large animal contusion models of spinal cord injury are an essential precursor to developing and evaluating treatment options for human spinal cord injury. Reducing variability in these experiments has been a recent focus as it increases the sensitivity with which treatment effects can be detected while simultaneously decreasing the number of animals required in a study. Here, we conducted a detailed review to explore if head and neck positioning in a cervical contusion model of spinal cord injury could be a factor impacting the biomechanics of a spinal cord injury, and thus, the resulting outcomes. By reviewing existing literature, we found evidence that animal head/neck positioning affects the exposed level of the spinal cord, morphology of the spinal cord, tissue mechanics and as a result the biomechanics of a cervical spinal cord injury. We posited that neck position could be a hidden factor contributing to variability. Our results indicate that neck positioning is an important factor in studying biomechanics, and that reporting these values can improve inter-study consistency and comparability and that further work needs to be done to standardize positioning for cervical spinal cord contusion injury models.
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spelling doaj.art-afcd16c552a1459d80d3b80e17d4ac122024-04-18T10:11:06ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-06-011410.3389/fneur.2023.11524721152472The biomechanical implications of neck position in cervical contusion animal models of SCINumaira Obaid0Numaira Obaid1Kazuhito Morioka2Kazuhito Morioka3Eleni Sinopoulou4Yvette S. Nout-Lomas5Ernesto Salegio6Jacqueline C. Bresnahan7Michael S. Beattie8Carolyn J. Sparrey9Carolyn J. Sparrey10Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, CanadaInternational Collaboration on Repair Discoveries (ICORD), Vancouver, BC, CanadaDepartment of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, United StatesBrain and Spinal Injury Center, Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United StatesCenter for Neural Repair, University of California, San Diego, San Diego, CA, United StatesDepartment of Clinical Sciences, Colorado State University, Fort Collins, CO, United StatesUniversity of California, Davis, Davis, CA, United StatesBrain and Spinal Injury Center, Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United StatesBrain and Spinal Injury Center, Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United StatesMechatronic Systems Engineering, Simon Fraser University, Surrey, BC, CanadaInternational Collaboration on Repair Discoveries (ICORD), Vancouver, BC, CanadaLarge animal contusion models of spinal cord injury are an essential precursor to developing and evaluating treatment options for human spinal cord injury. Reducing variability in these experiments has been a recent focus as it increases the sensitivity with which treatment effects can be detected while simultaneously decreasing the number of animals required in a study. Here, we conducted a detailed review to explore if head and neck positioning in a cervical contusion model of spinal cord injury could be a factor impacting the biomechanics of a spinal cord injury, and thus, the resulting outcomes. By reviewing existing literature, we found evidence that animal head/neck positioning affects the exposed level of the spinal cord, morphology of the spinal cord, tissue mechanics and as a result the biomechanics of a cervical spinal cord injury. We posited that neck position could be a hidden factor contributing to variability. Our results indicate that neck positioning is an important factor in studying biomechanics, and that reporting these values can improve inter-study consistency and comparability and that further work needs to be done to standardize positioning for cervical spinal cord contusion injury models.https://www.frontiersin.org/articles/10.3389/fneur.2023.1152472/fullspinal cord injurysurgical positioningcontusion modelsanimal modelscontusion injury
spellingShingle Numaira Obaid
Numaira Obaid
Kazuhito Morioka
Kazuhito Morioka
Eleni Sinopoulou
Yvette S. Nout-Lomas
Ernesto Salegio
Jacqueline C. Bresnahan
Michael S. Beattie
Carolyn J. Sparrey
Carolyn J. Sparrey
The biomechanical implications of neck position in cervical contusion animal models of SCI
Frontiers in Neurology
spinal cord injury
surgical positioning
contusion models
animal models
contusion injury
title The biomechanical implications of neck position in cervical contusion animal models of SCI
title_full The biomechanical implications of neck position in cervical contusion animal models of SCI
title_fullStr The biomechanical implications of neck position in cervical contusion animal models of SCI
title_full_unstemmed The biomechanical implications of neck position in cervical contusion animal models of SCI
title_short The biomechanical implications of neck position in cervical contusion animal models of SCI
title_sort biomechanical implications of neck position in cervical contusion animal models of sci
topic spinal cord injury
surgical positioning
contusion models
animal models
contusion injury
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1152472/full
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