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Surgical Endoscopy
Published in: Surgical Endoscopy 12/2007

01-12-2007

Construct validity for eye–hand coordination skill on a virtual reality laparoscopic surgical simulator

Authors: Shohei Yamaguchi, Kozo Konishi, Takefumi Yasunaga, Daisuke Yoshida, Nao Kinjo, Kiichiro Kobayashi, Satoshi Ieiri, Ken Okazaki, Hideaki Nakashima, Kazuo Tanoue, Yoshihiko Maehara, Makoto Hashizume

Published in: Surgical Endoscopy | Issue 12/2007

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Abstract

Background

This study was carried out to investigate whether eye-hand coordination skill on a virtual reality laparoscopic surgical simulator (the LAP Mentor) was able to differentiate among subjects with different laparoscopic experience and thus confirm its construct validity.

Methods

A total of 31 surgeons, who were all right-handed, were divided into the following two groups according to their experience as an operator in laparoscopic surgery: experienced surgeons (more than 50 laparoscopic procedures) and novice surgeons (fewer than 10 laparoscopic procedures). The subjects were tested using the eye-hand coordination task of the LAP Mentor, and performance was compared between the two groups. Assessment of the laparoscopic skills was based on parameters measured by the simulator.

Results

The experienced surgeons completed the task significantly faster than the novice surgeons. The experienced surgeons also achieved a lower number of movements (NOM), better economy of movement (EOM) and faster average speed of the left instrument than the novice surgeons, whereas there were no significant differences between the two groups for the NOM, EOM and average speed of the right instrument.

Conclusions

Eye-hand coordination skill of the nondominant hand, but not the dominant hand, measured using the LAP Mentor was able to differentiate between subjects with different laparoscopic experience. This study also provides evidence of construct validity for eye-hand coordination skill on the LAP Mentor.
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Metadata
Title
Construct validity for eye–hand coordination skill on a virtual reality laparoscopic surgical simulator
Authors
Shohei Yamaguchi
Kozo Konishi
Takefumi Yasunaga
Daisuke Yoshida
Nao Kinjo
Kiichiro Kobayashi
Satoshi Ieiri
Ken Okazaki
Hideaki Nakashima
Kazuo Tanoue
Yoshihiko Maehara
Makoto Hashizume
Publication date
01-12-2007
Publisher
Springer-Verlag
Published in
Surgical Endoscopy / Issue 12/2007
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-007-9362-1

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