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A Cost-Effective Task Trainer for Complex Lip Laceration Repair.

Ryan Walsh¹, Charles Lei¹, Jeffrey Heimiller¹

¹Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, USA.

|April 7, 2021

Summary

This study introduces an affordable, easy-to-reproduce simulation trainer for lip laceration repair, significantly boosting Emergency Medicine residents

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Area of Science:

Emergency Medicine
Surgical Simulation
Medical Education

Background:

Facial laceration repair, particularly involving the vermillion border, demands precision due to significant cosmetic implications.
Accurate alignment is crucial, as even 1 mm of misalignment can lead to poor cosmetic outcomes.
Effective training is essential for Emergency Medicine residents to master complex lip laceration repairs.

Purpose of the Study:

To construct and evaluate an affordable, effective, and reproducible simulation trainer for full-thickness lip lacerations with vermillion border involvement.
To enhance Emergency Medicine resident education in cosmetic facial repair.

Main Methods:

A multi-layered lip laceration model was created using readily available materials: microfoam tape, gauze, and self-adherent wrap.

Keywords:

complex lip laceration repair emergency medicine emergency medicine procedural competency emergency medicine training laceration repair task-trainer vermillion border

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The model simulates key anatomical layers, including the orbicularis oris muscle, subcutaneous fat, and dermal/epidermal junction.

The trainer was implemented in a simulation didactic session for Emergency Medicine residents at Vanderbilt University Medical Center.

Main Results:

Twenty-three residents participated, with 19 completing a survey.
Resident comfort performing lip laceration repair significantly increased post-training (mean 4.31 vs. 2.53, P <0.0001).
The task trainer (mean 4.74) and overall didactic (mean 4.84) received high ratings.

Conclusions:

The described low-cost, easily reproducible task trainer substantially improves resident confidence in complex lip laceration repair.
This simulation model offers a valuable tool for enhancing procedural skills in emergency medicine.