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The Helsinki Rat Microsurgical Sidewall Aneurysm Model
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The development of a retroperitoneal dissection model.

Aisha A Yousuf1, Helena Frecker2, Abheha Satkunaratnam3

  • 1Department of Obstetrics and Gynaecology, Division of Gynecologic Surgery and Pelvic Medicine, St. Michael's Hospital, Toronto, Ontario, Canada; Department of Obstetrics and Gynaecology, University of Toronto, Toronto, Ontario, Canada; Department of Obstetrics and Gynaecology, Sidra Medical and Research Center, Doha, Qatar.

American Journal of Obstetrics and Gynecology
|July 12, 2017
PubMed
Summary

This study developed a low-cost, reproducible laparoscopic simulation model for retroperitoneal anatomy. Expert surgeons validated its effectiveness in teaching ureteric dissection and preventing surgical injury.

Keywords:
laparoscopyretroperitoneal dissectionsimulation modelsurgical education

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Area of Science:

  • Surgical Education
  • Minimally Invasive Surgery
  • Anatomy Simulation

Background:

  • Ureteric injury is a risk in laparoscopic gynecologic surgery, increasing with surgeon inexperience.
  • Current training lacks effective simulation models for ureteric dissection in retroperitoneal anatomy.
  • Developing realistic, accessible training tools is crucial for injury prevention.

Purpose of the Study:

  • To design and validate a low-cost, reproducible laparoscopic simulation model for retroperitoneal anatomy.
  • To assess the face validity and utility of the model for surgical training.
  • To address the gap in simulation training for ureteric dissection.

Main Methods:

  • A low-fidelity, 3D simulation model of retroperitoneal anatomy was constructed using readily available materials.
  • The model's cost, reproducibility, and construction were documented.
  • Expert minimally invasive gynecologic surgeons evaluated the model's realism and training potential using a Likert scale.

Main Results:

  • The simulation model cost between $65-$75 to create, with reusable components.
  • 100% of expert surgeons agreed the model approximated the ureter's anatomic course.
  • 86% found the model resembled ureteric and vascular textures, and 71% felt it closely approximated live surgery.

Conclusions:

  • This novel, low-cost simulation model effectively replicates retroperitoneal anatomy for laparoscopic surgery.
  • The model demonstrates high face validity and is suitable for teaching and assessing ureteric dissection skills.
  • It offers a valuable, reproducible training solution to enhance surgical safety and prevent ureteric injury.