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

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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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Authors and Affiliations

  1. Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Shohei Yamaguchi, Takefumi Yasunaga, Daisuke Yoshida & Makoto Hashizume

  2. Department of Innovative Medical Technology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Kozo Konishi, Ken Okazaki & Hideaki Nakashima

  3. Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Nao Kinjo & Yoshihiko Maehara

  4. Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan

    Kiichiro Kobayashi

  5. Department of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan

    Satoshi Ieiri & Kazuo Tanoue

Authors
  1. Shohei Yamaguchi
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  2. Kozo Konishi
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  3. Takefumi Yasunaga
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  4. Daisuke Yoshida
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  9. Hideaki Nakashima
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  11. Yoshihiko Maehara
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  12. Makoto Hashizume
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Corresponding author

Correspondence to Shohei Yamaguchi.

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Yamaguchi, S., Konishi, K., Yasunaga, T. et al. Construct validity for eye–hand coordination skill on a virtual reality laparoscopic surgical simulator. Surg Endosc 21, 2253–2257 (2007). https://doi.org/10.1007/s00464-007-9362-1

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  • DOI: https://doi.org/10.1007/s00464-007-9362-1

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