Threshold cervical range-of-motion necessary to detect abnormal intervertebral motion in cervical spine radiographs

Spine
HoSun HwangCharles A Reitman

Abstract

Whole human cadaver model to assess a common diagnostic test for cervical spine stability. Determine criteria that can be used to determine if sagittal plane angular motion of the head/neck during a cervical spine flexion/extension study is adequate to reliably assess intervertebral motion (IVM). Flexion/Extension radiographs of the cervical spine are commonly used to help identify specific abnormalities in IVM. Several authors have recognized that inadequate patient effort can make flexion/extension studies unreliable, but validated guidelines for assessing the adequacy of these studies are not available. Increasingly severe anterior-to-posterior (N = 6), and posterior-to-anterior (N = 6) soft tissue injuries were simulated in the cervical spines of 12 human cadavers. Sagittal plane radiographic images were taken with 4 gradually increasing amounts of overall flexion and extension motion of the head. IVM was measured for each level of sagittal plane rotation of the head/neck using previously validated computer-assisted methods. With less than 60 degrees of sagittal plane rotation of the head/neck, intervertebral rotation or displacement was almost never greater than the 95% confidence interval previously established for asympt...Continue Reading

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Citations

Jun 14, 2013·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·M MayerH Koller
Nov 30, 2013·International Journal of Biomedical Imaging·Paolo BifulcoMario Sansone
Jun 29, 2014·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Baoge LiuXin Lin
Oct 22, 2013·American Journal of Surgery·Vasiliy SimSamual Robert Todd
Oct 19, 2012·Journal of Spinal Disorders & Techniques·Wu ZhugeCharles A Reitman
Mar 16, 2017·Computer Methods in Biomechanics and Biomedical Engineering·Christian BalkovecStuart M McGill

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