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Related Experiment Videos

The effect of practice on performance in a laparoscopic simulator

A M Derossis1, J Bothwell, H H Sigman

  • 1Division of General Surgery, McGill University, Division of General Surgery, Montreal General Hospital, 1650 Cedar Avenue Rm L 9-412 Montreal, Quebec, Canada, H3G 1A4.

Surgical Endoscopy
|August 26, 1998
PubMed
Summary

Structured practice in a laparoscopic simulator significantly improves surgical resident skills. Regular practice sessions lead to greater performance gains compared to no practice, highlighting the value of simulators in surgical training.

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Area of Science:

  • Surgical Education
  • Medical Simulation
  • Minimally Invasive Surgery

Background:

  • Objective measurement of laparoscopic skill is crucial for surgical training.
  • Simulator-based tasks assess precision and speed in essential laparoscopic procedures.
  • Seven specific tasks were evaluated, including suturing and mesh placement.

Purpose of the Study:

  • To objectively measure laparoscopic skill acquisition in surgical residents.
  • To compare the impact of structured practice versus no practice on skill improvement.
  • To determine the correlation between practice repetitions and performance outcomes.

Main Methods:

  • 12 surgical residents were randomized into a practice group (Group A) and a control group (Group B).
  • Group A underwent five weekly practice sessions on simulator tasks, while Group B received no practice.

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  • Performance was assessed at baseline and after the intervention period, with linear regression analyzing score-repetition correlation.

    • Main Results:

    • Group A demonstrated significant improvement across all tasks and total scores (p < 0.05).
    • Group B showed improvement in four tasks and the total score, but with less magnitude than Group A.
    • Group A's final total score was 219% of baseline (p < 0.0001), significantly higher than Group B's 162% (p = 0.07).

    Conclusions:

    • Laparoscopic skills can be objectively quantified using simulators.
    • Progressive performance enhancement is directly linked to practice.
    • Simulator-based training and evaluation are valuable components for surgical residency programs.