An Anatomic Model for Use in Surgical Skills Training of Tracheotomy

Abstract

Objective: The objective would be to design a low cost, reproducible anatomic model to simulate tracheotomy in the surgical skills training laboratory. The model was adapted from a base model used previously for verification of proficiency (VOP) assessment of cricothyrotomy by general surgery residents. Method: The following materials were used: ventilator tubing, vessel loops, a 2x4x9-inch block of wood, red and white felt fabric, automotive ceiling headliner, cardboard, foam tape, adhesive spray, and foam. All materials were found easily at a local craft store or in medical discard. Results: The model was assembled by securing ventilator tubing to a block of wood to represent the trachea. Thyroid and cricoid cartilages were fashioned and secured to ensure palpable landmarks. An anterior section of ventilator tubing was removed and replaced with foam tape to allow for a recyclable base. Finally, the thyroid and superficial tissue (including vessels and strap muscles) were assembled using headliner, felt, and vessel loops. After assembly was completed, four junior residents were able to successfully palpate each landmark, “ligate” vessels, identify and retract the thyroid isthmus, and perform a tracheostomy. Conclusion: The model developed is a practical and reproducible anatomic model for simulation training of tracheotomy for otolaryngology residents and can be created utilizing inexpensive, readily available materials. In conjunction with a skills lab training session, this useful tool could play an important role in the overall evaluation of surgical competence.