Increase in Vibration Following Vertebral Endplate Fracture: Potential for Endplate Fracture Detection

Details

• Personal Author:
  Callaghan JP ; Coombs MC ; Davis, Kermit G. ; Kotowski SE ; Parkinson RJ
• Description:
  Traditionally, in vitro intervertebral joint failure identification has been limited to observation of gross decreases in motion segment height, changes in force-deformation response, and posttest dissection. The purpose of this study was to determine whether changes in vibration transfer through the intervertebral joint could be used to accurately identify the loading cycle in which the vertebral endplate fractured. Fifteen functional spinal units were loaded in a pattern mimicking repetitive lifting with intermittent heel strikes, until fracture was believed to have occurred. Specimen axial deformation and vibration were measured. Following testing, specimens were dissected and vertebral endplate fractures were classified, and grouped as either detected fracture or nondetected fracture based upon whether or not maximum vibration exceeded 1.5x baseline vibration. For the fracture group, peak vibration increased 1222% (p<0.0001) from 4.65 m/s2 (+/-4.26) at baseline to a maximum of 61.51 m/s2 (+/-34.86). Non-detected fracture specimens showed minimal increases in vibration response, with peak vibration increasing 26% (p<0.10). Vibration analysis using structural health monitoring techniques may be useful to determine the occurrence of vertebral endplate fractures in vitro, and may lead to insights into fracture development and propagation. Full Text [Description provided by NIOSH]
• Subjects:
  Cumulative Trauma Disorders Occupational Health Safety Vibration
• Keywords:
  Author Keywords: Vertebral Endplate Fracture Axial Deformation Cumulative Loading Cyclic Loading Force Force-deformation Functional Spine Unit In Vitro Study Lifting Motion Perception Motion Studies Repetitive Stress Spine Structural Health Monitoring

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• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-7
• Volume:
  1
• Issue:
  1
• NIOSHTIC Number:
  nn:20049951
• Citation:
  Biomech Open Libr 2015 Nov; 1(1):1-7
• Contact Point Address:
  Kermit Davis, University of Cincinnati, Cincinnati, OH, 45221
• Email:
  davis@uc.edu
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Biomechanics Open Library
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2b84e4a769ed8c8099617aec948327b6bd79de6b8433f83469a618abd4d2e8620794d381676cb1db1a0b28b5d1e3e50bb593c3daebf8ae1e48e482c14aa3ac4d
• Download URL:
  https://stacks.cdc.gov/view/cdc/210533/cdc_210533_DS1.pdf
• File Type:
  [PDF - 1.55 MB ]