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High-voltage electrical burn injuries: functional upper extremity assessment.

K C Mazzetto-Betti1, A C G Amâncio, J A Farina

  • 1Department of Biomechanics, Medicine and Rehabilitation of the Locomotor Apparatus, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil. kelley.betti@gmail.com

Burns : Journal of the International Society for Burn Injuries
|February 11, 2009
PubMed
Summary

High-voltage electrical injuries significantly impair upper limb function, reducing hand strength and sensation. This often leads to job changes or early retirement for affected individuals.

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Area of Science:

  • Neurology
  • Traumatology
  • Occupational Medicine

Background:

  • High-voltage electrical injuries can cause significant central and peripheral nervous system damage.
  • Upper limb dysfunction is a common, yet understudied, complication of these injuries.

Purpose of the Study:

  • To evaluate upper limb dysfunction in patients with high-voltage electrical injuries.
  • To correlate functional deficits with injury characteristics and patient outcomes.

Main Methods:

  • Retrospective analysis of patient records for 18 male subjects.
  • Objective assessments included cutaneous sensibility thresholds, handgrip, and pinch strength.
  • Subjective assessment utilized the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire.

Main Results:

  • Reduced handgrip and pinch strength were observed in the injured limb (p<0.05).
  • A statistically significant correlation was found between reduced strength and higher DASH scores (p<0.001).
  • Decreased cutaneous touch/pressure perception was noted, particularly in the median nerve distribution.

Conclusions:

  • High-voltage electrical injuries lead to measurable reductions in hand muscular strength and sensory perception.
  • These deficits significantly impair upper limb function, impacting patients' quality of life and work capacity.