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. 2002 Apr;16(4):674-8.
doi: 10.1007/s00464-001-9116-4. Epub 2001 Dec 31.

Evaluation of the usability of two types of image display systems, during laparoscopy

M A Veelen  1 , J J Jakimowicz, R H M Goossens, D W Meijer, J B J Bussmann
Affiliations

Evaluation of the usability of two types of image display systems, during laparoscopy

M A Veelen et al. Surg Endosc. 2002 Apr.

Abstract

Background: This study was performed to assess the optimal display location of a flat-screen monitor for laparoscopy. It was also performed to assess the posture (objective), opinion, and preference (subjective) of subjects using a flat-screen monitor positioned in the optimal display location and a cathode-ray tube monitor on a tower next to the operating table (current situation).

Methods: Twelve surgeons performed cholecystectomies using the two display systems alternately. The postures of the operator and the assistant were assessed by an infrared video analysis system.

Results: The posture of the assistant is significantly better when using a flat-screen monitor [more neutral head flexions (p = 0.036) and neutral neck torsions (p = 0.012)]. No significant differences were found for the posture of the operator. The operators and assistants felt more comfortable when using a flat-screen monitor (p = 0.008) and they preferred this display to the use of a monitor on a tower.

Conclusions: The use of flat-screen monitors is better for the physical and psychological comfort of the users, even though the technical performance is inferior in comparison with that of regular monitors.

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