Vibration from a riveting hammer causes severe nerve damage in the rat tail model

Details

• Personal Author:
  Bain J ; Persson M ; Raju SG ; Riley D ; Rogness O
• Description:
  INTRODUCTION: Hand-arm vibration syndrome (HAVS) is an occupational neurodegenerative and vasospastic disorder in workers who use powered hand tools. Frequency weighting (ISO 5349) predicts little risk of injury for frequencies >500 HZ. Potentially damaging high frequencies abound in impact tool-generated shock waves. METHODS: A rat tail impact vibration model was developed to deliver shock-wave vibration from a riveting hammer to simulate bucking bar exposure. Rat tails were vibrated continuously for 12 min. Tail flick withdrawal times were determined for noxious heat. Nerve trunks and skin were processed for light and electron microscopy. RESULTS: Immediately after vibration, the tails were hyperalgesic and had disrupted myelinated axons, fragmented nerve endings, and mast-cell degranulation. By 4 days, the tails were hypoalgesic; nerve endings were lost in the skin. CONCLUSIONS: Shock-wave vibration causes severe nerve damage. Frequency weighting seriously underestimates the risk of nerve injury with impact tools. [Description provided by NIOSH]
• Subjects:
  Musculoskeletal System Nervous System Occupational Health Safety Vibration
• Keywords:
  Arm-injuries Author Keywords: Hand-arm Vibration Syndrome Exposure-levels Exposure-limits Hand-injuries Hand-tools Impact Tools Langerhans Cells Mast Cells Nerve-damage Neuromuscular-function Neuromuscular-system Shock-waves Skin Denervation Vibration-disease Vibration-effects Vibration-exposure

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• ISSN:
  0148-639X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 5 ; Wisconsin
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  44
• Issue:
  5
• NIOSHTIC Number:
  nn:20040082
• Citation:
  Muscle Nerve 2011 Nov; 44(5):795-804
• Contact Point Address:
  Danny Riley, PhD, Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226
• Email:
  dariley@mcw.edu
• Federal Fiscal Year:
  2012
• Performing Organization:
  Medical College of Wisconsin, Milwaukee, Wisconsin
• Peer Reviewed:
  True
• Start Date:
  19990901
• Source Full Name:
  Muscle & Nerve
• End Date:
  20030831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8906eb0e012d04a54a8194dda565a0698460d81aa33d42cde16a45037e3113d1395c1eab633b598051a253c2b40ee1e1740dbcb001368869c5d2397163b1bceb
• Download URL:
  https://stacks.cdc.gov/view/cdc/193061/cdc_193061_DS1.pdf
• File Type:
  [PDF - 2.45 MB ]