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Creation of a High-Fidelity, Low-Cost, Intraosseous Line Placement Task Trainer via 3D Printing

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Novel Low-Cost, Low-Fidelity Hemorrhoidectomy Task Trainers.

Alaina D Geary¹, Luise I M Pernar¹, Jason F Hall¹

¹Department of Surgery, Boston Medical Center, Boston, Massachusetts.

Journal of Surgical Education

|April 4, 2020

Summary

Low-cost hemorrhoidectomy task trainers effectively differentiate surgical skills between experts and novices. These simulation models provide valuable practice for junior residents in anorectal surgery, enhancing surgical preparation.

Keywords:

model task trainer simulation training surgical education

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Area of Science:

Surgical Education
Medical Simulation
Anorectal Surgery Training

Background:

Junior surgical residents often lack adequate preparation for anorectal procedures.
Development of cost-effective training tools is crucial for surgical skill acquisition.
Hemorrhoidectomy requires proficiency in dissection, knot-tying, and suturing within confined spaces.

Purpose of the Study:

To develop and evaluate low-cost task trainers for hemorrhoidectomy simulation.
To compare the performance of surgical experts and novices using these trainers.
To assess the perceived utility and achievability of the task trainers for skill improvement.

Main Methods:

Three low-fidelity task trainers were created to simulate key hemorrhoidectomy skills.
Participants (experts and novices) performed simulated dissection, knot-tying, and suturing tasks.
Performance metrics included task completion time, error rates, and subjective evaluations.

Main Results:

Experts demonstrated significantly faster knot-tying and suturing times compared to novices.
Experts required fewer attempts for knot-tying.
No significant differences were found in dissection speed or other error types.
All participants rated the tasks as achievable and useful for skill development.

Conclusions:

Low-cost, low-fidelity hemorrhoidectomy task trainers can effectively distinguish between expert and novice surgical skills.
These simulation models offer a practical and useful training opportunity for general surgery residents.
The trainers show potential for improving surgical competency in anorectal procedures.