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Surgeon hand size influences laparoscopic finger loop handle preference.

Sophie N Cormillot1, Nicole J Buote2, Shinyee Su1

  • 1Cornell University College of Veterinary Medicine, Ithaca, New York, USA.

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|October 10, 2025
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Summary

Smaller glove sizes and female surgeons find standard laparoscopic handles difficult to use. Handle comfort in laparoscopic surgery is dependent on surgeon glove size and gender.

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Area of Science:

  • Minimally Invasive Surgery
  • Surgical Ergonomics
  • Laparoscopic Instrumentation

Background:

  • Laparoscopic surgery relies on specialized instruments with handles designed for user comfort and control.
  • Instrument handle design, particularly finger loop size, can significantly impact surgeon performance and comfort.
  • Variations in surgeon hand size and glove size may influence the perceived ergonomics of laparoscopic instruments.

Purpose of the Study:

  • To compare surgeon comfort and functionality across three different sizes of laparoscopic ring/finger loop handles.
  • To identify which handle design feature is most associated with surgeon comfort during a simulated laparoscopic task.
  • To investigate the influence of surgeon demographics, such as gender and glove size, on handle preference.

Main Methods:

  • A prospective, blinded, randomized three-way cross-over study was conducted.
  • 120 participants at the 2022 American College of Veterinary Surgeons (ACVS) annual symposium performed a laparoscopic cup biopsy task.
  • Participants used three differently sized, blinded finger loop handles in a randomized order, followed by a survey on handle characteristics.

Main Results:

  • Surgeon glove size was a significant predictor of the most comfortable handle size (p < .001).
  • Female surgeons with smaller glove sizes (<6.5) reported greater difficulty with standard laparoscopic handles compared to male surgeons.
  • Comfort preferences varied by gender, with females prioritizing "easier to turn dial" and males prioritizing "fingers felt more comfortable in grips".

Conclusions:

  • Laparoscopic handle design significantly impacts comfort and functionality, particularly for surgeons with smaller glove sizes and female surgeons.
  • Glove size is a critical determinant of the optimal laparoscopic handle design for comfort and ergonomics.
  • Surgeons should explore various laparoscopic handle options to optimize ergonomic performance during procedures.