Quantitative posture analysis of 2D, 3D, and optical microscope visualization methods for microsurgery tasks

Details

• Personal Author:
  Armstrong T ; Kasten S ; Sackllah M ; Woolley C ; Yu D
• Description:
  The purpose of this paper is to present a quantitative posture analysis of microsurgery tasks performed with different visualization methods. Microsurgery is traditionally performed using a binocular microscope; however surgeons are constrained by the optical eyepieces and are forced to assume joint angles that deviate away from neutral postures. This may be especially problematic for the neck and can increase surgeon discomfort and fatigue. Alternative visualization methods may improve surgeon posture by eliminating the constraints imposed by the microscope. This study examines both 2D and 3D heads-up displays as possible alternatives. Six subjects performed microsurgical tasks with each visualization methods for four hours. Quantitative posture analysis was done using Maxtraq software that tracks reflective markers on the subjects. The initial analysis of neck, upper arm, and elbow angles found significant differences between each display. A biomechanical analysis found that the differences in angles can result in loads on the neck joint that are twice as high in the microscope than the heads-up displays. Although the alternative displays can result in better postures, improvements the display technology is needed to improve microsurgical task performance. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Eye Fatigue Health Care Facilities Workforce And Services Health Personnel Musculoskeletal System Occupational Health Safety Sense Organs
• Keywords:
  Author Keywords: Microscope Biomechanics Equipment-design Heads-up Display Humans Medical-equipment Microscopy Physiological-function Posture Posture Analysis Quantitative-analysis Surgeons Surgery Task-performance Visual-aids Visual-images Visual-motor-performance

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• ISSN:
  1051-9815
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  41
• NIOSHTIC Number:
  nn:20043043
• Citation:
  Work 2012 Jan; 41(Suppl 1):1944-1947
• Contact Point Address:
  Denny Yu, Center for Ergonomics, University of Michigan, 1205 Beal Ave., Ann Arbor, MI 48109, USA
• Email:
  Denny.z.yu@gmail.com
• Federal Fiscal Year:
  2012
• Peer Reviewed:
  True
• Source Full Name:
  Work
• Supplement:
  1
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2921a058fb5b1069ddfd35481b2f770d99f64aad12a0c04018f1edc55ec6f495d43ac187e35016d4d0ab80ceccba49c502e4aac8d5f59d0a8c6603040a94f412
• Download URL:
  https://stacks.cdc.gov/view/cdc/195066/cdc_195066_DS1.pdf
• File Type:
  [PDF - 229.63 KB ]