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Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality
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Trocar insertion: the neglected task of VR simulation.

Vera Brümmer1, Heather Carnahan, Allan Okrainec

  • 1Dept. of Exercise Neuroscience, Institute of Motor Control and Movement Technique, German Sport University, Cologne, Germany.

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Simulation-based practice improves surgical skills. This study found novices and junior trainees had greater trocar insertion depth than experienced surgeons, highlighting a training need. A new virtual reality trainer is proposed.

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Area of Science:

  • Surgical Education
  • Medical Simulation
  • Minimally Invasive Surgery

Background:

  • Trocar insertion is a fundamental surgical skill.
  • Current training methods may not adequately address trocar insertion technique.
  • Virtual reality (VR) simulation offers potential for targeted skill development.

Purpose of the Study:

  • To evaluate the impact of simulation-based practice on trocar insertion skills.
  • To compare trocar insertion depth among novices, junior trainees, and experienced surgeons.
  • To introduce a novel VR trainer for practicing trocar insertion.

Main Methods:

  • Participants (novices, junior trainees, surgeons) performed a simulated trocar insertion task.
  • Objective measurements of trocar depth (plunge) were recorded.
  • A prototype VR trainer for trocar insertion was developed.

Main Results:

  • Trocar insertion depth was similar between novices and junior trainees (p=.98).
  • Both novice and junior trainees demonstrated greater trocar insertion depth compared to practicing surgeons (p<.05).
  • This suggests a potential area for skill improvement in surgical training.

Conclusions:

  • Simulation-based practice is crucial for refining surgical skills like trocar insertion.
  • Trocar insertion depth is a key variable that may require specific training interventions.
  • The developed VR trainer prototype aims to address the current gap in practicing this skill in a simulated environment.