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Comparison of the performance of experienced and novice surgeons: measurement of gripping force during laparoscopic surgery performed on pigs using forceps with pressure sensors

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Abstract

Background

Laparoscopic surgical techniques are difficult to learn, and developing such skills involves a steep learning curve. To ensure surgeons achieve a high skill level, it is important to be able to measure and assess their skills. Therefore, it is necessary to understand the performance differences between experienced and novice surgeons, as such information could be used to help surgeons learn laparoscopic skills. We examined the differences in gripping and reaction force between experienced and novice surgeons during laparoscopic surgery.

Methods

We measured the gripping force generated during laparoscopic surgery performed on pigs using forceps with pressure sensors. Several sensors, including strain gauges, accelerometers, and a potentiometer, were attached to the forceps. This study included 4 experienced and 4 novice surgeons. Each subject was asked to elevate the kidney in order to approach the renal hilus using the forceps. Throughout the experiment, we measured the gripping force and reaction force generated during the movement of the forceps in real time.

Results

The experienced and novice surgeons exhibited similar reaction force levels. Conversely, gripping force differed significantly between the groups. The experienced and novice surgeons exhibited mean gripping force levels of 3.06 and 7.15 N, respectively. The gripping force standard deviation values for the experienced and novice surgeons were 1.43 and 3.54 N, respectively. The mean and standard deviation gripping force values of the experienced surgeons were significantly lower than those of the novice surgeons (P = 0.015 and P = 0.011, respectively).

Conclusions

This study indicated that experienced surgeons generate weaker but more stable gripping force than novice surgeons during laparoscopic procedures.

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Authors and Affiliations

  1. Department of Urology, Yokohama City University, Yokohama, 236-0004, Japan

    Azumi Araki, Kazuhide Makiyama, Hiroyuki Yamanaka, Daiki Ueno, Kimito Osaka & Masahiro Yao

  2. Mitsubishi Precision Co., Ltd., Kamakura, 247-8505, Japan

    Manabu Nagasaka

  3. Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, 240-8501, Japan

    Takahiro Yamada

Authors
  1. Azumi Araki
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  2. Kazuhide Makiyama
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  3. Hiroyuki Yamanaka
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  4. Daiki Ueno
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  5. Kimito Osaka
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  6. Manabu Nagasaka
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  7. Takahiro Yamada
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  8. Masahiro Yao
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Corresponding author

Correspondence to Azumi Araki.

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Disclosures

Azumi Araki, Kazuhide Makiyama, Hiroyuki Yamanaka, Daiki Ueno, Kimito Osaka, Manabu Nagasaka, Takahiro Yamada, Masahiro Yao have no conflicts of interest or financial ties to disclose.

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Araki, A., Makiyama, K., Yamanaka, H. et al. Comparison of the performance of experienced and novice surgeons: measurement of gripping force during laparoscopic surgery performed on pigs using forceps with pressure sensors. Surg Endosc 31, 1999–2005 (2017). https://doi.org/10.1007/s00464-016-5153-x

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  • DOI: https://doi.org/10.1007/s00464-016-5153-x

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