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Training model for salvage procedures in endoscopic stapes surgery.

Ignacio Javier Fernandez1, Marco Bonali2, Abraam Yacoub3,4

  • 1Otolaryngology Head and Neck Surgery Department, Modena University, University Hospital of Modena (Policlinico Di Modena, Azienda Ospedaliero-Universitaria Di Modena, Università Di Modena E Reggio Emilia), Via del Pozzo 71, 41124, Modena, Italy. ignaciojavier.fernandez@unimore.it.

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
|June 28, 2020
PubMed
Summary

This study developed an ex-vivo ovine model for training in advanced endoscopic stapes surgery. The model effectively simulates complex intraoperative scenarios, aiding skill acquisition and maintenance.

Keywords:
Advanced procedures in stapes surgeryAnimal modelComplications in stapes surgeryEndoscopic ear surgeryStapes surgerySurgical training

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Area of Science:

  • Otolaryngology
  • Surgical Education
  • Animal Models

Background:

  • The learning curve for endoscopic stapes surgery is lengthy, with limited training opportunities for complex or salvage procedures.
  • Unexpected intraoperative challenges in stapes surgery necessitate proficiency in advanced techniques.

Purpose of the Study:

  • To develop and validate an ex-vivo ovine model for training in salvage and advanced endoscopic stapes surgery procedures.
  • To simulate difficult intraoperative scenarios encountered during stapes surgery.

Main Methods:

  • Defined critical intraoperative scenarios for stapes surgery requiring salvage techniques.
  • Utilized an ovine (sheep) model to replicate these specific surgical situations.
  • Validated the model through subjective feedback from surgeons and anatomical comparison with human subjects.

Main Results:

  • The ovine model successfully simulated scenarios including floating footplate, footplate fracture, incus luxation/necrosis, overhanging facial nerve, and obliterative otosclerosis.
  • Surgeons rated the realism and utility of the simulated scenarios highly (7.5-9.0).
  • Anatomical measurements of the oval window in the ovine model closely matched human dimensions.

Conclusions:

  • The ex-vivo ovine model is a viable and effective tool for training and maintaining advanced skills in endoscopic stapes surgery.
  • This model provides a valuable platform for practicing complex and salvage procedures in a controlled environment.