Prevalence of bifid median nerves and persistent median arteries and their association with carpal tunnel syndrome in a sample of Latino poultry processors and other manual workers

Details

• Personal Author:
  Arcury TA ; Blocker JN ; Cartwright MS ; Chen H ; Grzywacz JG ; Mora DC ; Quandt SA ; Schultz MR ; Suk JI ; Walker FO
• Description:
  INTRODUCTION: The prevalence of bifid median nerves and persistent median arteries, their co-occurrence, and their relationship to carpal tunnel syndrome (CTS) are only understood partially. METHODS: We screened 1026 wrists of 513 Latino manual laborers in North Carolina for bifid median nerves and persistent median arteries using electrodiagnosis and ultrasound. RESULTS: A total of 8.6% of wrists had a bifid median nerve, and 3.7% of wrists had a persistent median artery independent of subgroup ethnicity, age, gender, or type of work. An association with definite carpal tunnel syndrome was not found. The presence of either anatomic variant was associated with a high likelihood of co-occurrence of another variant in the same or the contralateral wrist. CONCLUSIONS: The occurrence of median anatomic variants can be determined in field studies using ultrasound. Persistent median arteries and bifid median nerves tend to co-occur but do not put manual laborers at additional risk of developing CTS. [Description provided by NIOSH]
• Subjects:
  Anatomy Epidemiology Men Musculoskeletal Diseases Musculoskeletal System Nervous System Occupational Health Safety Women
• Keywords:
  Author Keywords: Entrapment Neuropathy Carpal-tunnel-syndrome Humans Manual-materials-handling Musculoskeletal-system Musculoskeletal-system-disorders Nerve-function Nerves Neuromuscular Ultrasound Occupational Health Poultry Workers Sociological-factors Statistical-analysis Workers

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• ISSN:
  0148-639X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  North Carolina ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  48
• Issue:
  4
• NIOSHTIC Number:
  nn:20043370
• Citation:
  Muscle Nerve 2013 Oct; 48(4):539-544
• Contact Point Address:
  Francis O. Walker, MD, Department of Neurology, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157-1078
• Email:
  fwalker@wakehealth.edu
• Federal Fiscal Year:
  2014
• NORA Priority Area:
  Manufacturing
• Performing Organization:
  Wake Forest University Health Sciences - Winston-Salem, North Carolina
• Peer Reviewed:
  True
• Start Date:
  20080930
• Source Full Name:
  Muscle & Nerve
• End Date:
  20140929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5d060a66c44b6b0162649d06c6b32a3031fa5d0a54b99b385077cf018db7e48a1c718fa52265eb95c5bf61933af0c6ce21a2e8f5981a90211215f6092f9ce2c3
• Download URL:
  https://stacks.cdc.gov/view/cdc/195287/cdc_195287_DS1.pdf
• File Type:
  [PDF - 141.87 KB ]