Muscle intrusion as a potential cause of carpal tunnel syndrome

Details

• Personal Author:
  Arcury TA ; Cartwright MS ; Chen H ; Mora DC ; Newman JC ; Quandt SA ; Walker FO
• Description:
  INTRODUCTION: The aim of this study was to determine whether there is an association between flexor digitorum and lumbrical muscle intrusion into the carpal tunnel and carpal tunnel syndrome (CTS). METHODS: Five hundred thirteen manual laborers (1026 wrists) were evaluated with ultrasound to determine whether those with CTS had more muscle intrusion into the carpal tunnel than those without CTS. One hundred ninety of the participants without CTS at baseline (363 wrists) were followed over 1 year to determine whether muscle intrusion at baseline predicted the development of CTS. RESULTS: Participants with CTS had more muscle within the carpal tunnel with the wrist in the neutral (P=0.026) and flexed (P=0.018) positions than those without CTS. Baseline muscle intrusion did not predict development of CTS at 1 year. CONCLUSIONS: Muscle intrusion into the carpal tunnel is associated with CTS, but muscle intrusion alone does not predict the development of CTS over the course of a year. [Description provided by NIOSH]
• Subjects:
  Epidemiology Musculoskeletal Diseases Musculoskeletal System Nervous System Occupational Health Safety
• Keywords:
  Author Keywords: Carpal Tunnel Syndrome Carpal-tunnel-syndrome Electromyography Etiology Humans Incidence Manual-materials-handling Muscles Musculoskeletal-system Musculoskeletal-system-disorders Nerve-function Nerves Physiopathology Prevalence Statistical-analysis Ultrasound 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:
  50
• Issue:
  4
• NIOSHTIC Number:
  nn:20045627
• Citation:
  Muscle Nerve 2014 Oct; 50(4):517-522
• Contact Point Address:
  Michael S. Cartwright, MD, MS, Department of Neurology, Wake Forest School of Medicine, Main Floor Reynolds Tower, Winston-Salem, North Carolina 27157, USA
• Email:
  mcartwri@wakehealth.edu
• Federal Fiscal Year:
  2015
• 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-512:5610ceb64a53d062964debff66c57f0e8e4a7c87180d1969693565c14ab602201284c5fa8a2378a63aae6ebe4148d56a7c5f2599f32b01b44dff7d307ad91e44
• Download URL:
  https://stacks.cdc.gov/view/cdc/200979/cdc_200979_DS1.pdf
• File Type:
  [PDF - 104.43 KB ]