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Hand function in workers with hand-arm vibration syndrome.

R Cederlund1, A Isacsson, G Lundborg

  • 1Department of Hand Surgery, Malmö University Hospital, Sweden.

Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists
|April 7, 1999
PubMed
Summary

Hand-arm vibration syndrome (HAVS) causes significant hand impairment in exposed workers. Symptoms include numbness, pain, and difficulty with daily tasks, highlighting the need for greater recognition and management.

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Area of Science:

  • Occupational Health
  • Neurology
  • Biomechanics

Background:

  • Hand-arm vibration syndrome (HAVS) is increasingly recognized in Scandinavian countries.
  • However, global awareness and diagnosis of HAVS remain insufficient.
  • Occupational exposure to hand-held vibrating tools is a significant risk factor.

Purpose of the Study:

  • To characterize the nature and extent of vibration-induced hand impairment in symptomatic workers.
  • To evaluate the utility of various objective tests in detecting functional deficits.
  • To compare test results with normative data for pathological outcome identification.

Main Methods:

  • Interviewed 20 male workers (aged 28-65) with symptomatic hand-arm vibration exposure.
  • Assessed subjective symptoms and daily living activities.

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  • Administered objective tests for sensibility, dexterity, grip function, and grip strength.

    • Main Results:

    • Most patients reported cold intolerance, numbness, pain, and sensory deficits.
    • Significant variations in objective test sensitivity for detecting pathological outcomes were observed.
    • Semmes-Weinstein monofilament testing, shape identification, and two-point discrimination showed the most pathological indications.

    Conclusions:

    • Workers exposed to hand-arm vibration exhibit considerable impairment in hand function.
    • Objective testing reveals functional deficits, with specific sensory tests being most indicative.
    • Further research and clinical recognition of HAVS are warranted globally.