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Basic Surgical Skill Retention: Can Patriot Motion Tracking System Provide an Objective Measurement for it?
Shazrinizam Shaharan1, Emmeline Nugent2, Donncha M Ryan1
1National Surgical Training Centre, Royal College of Surgeons in Ireland, Dublin, Ireland.
Journal of Surgical Education
|November 18, 2015
Summary
The Patriot motion tracker effectively assesses surgical trainees' knot-tying skills, showing significant correlation with traditional methods and highlighting skill retention over five months of training.
Area of Science:
- Surgical Education
- Medical Simulation
- Biomedical Engineering
Background:
- Knot tying is a foundational skill for surgical trainees.
- Objective assessment tools are needed to evaluate surgical proficiency.
- Skill retention requires validated measurement methods.
Purpose of the Study:
- Validate the Patriot electromagnetic tracking system for surgical knot tying.
- Assess the predictive and concurrent validity of the Patriot system.
- Determine skill retention in first-year surgical trainees over five months.
Main Methods:
- First-year surgical trainees were assessed at baseline and five months.
- The Patriot system and Objective Structured Assessment of Technical Skills (OSATS) were used.
- Paired t-tests and Pearson correlation analyzed skill changes and tool validity.
Main Results:
- Significant improvements in knot-tying time and path length (PL) were observed.
- OSATS scores showed significant improvement, correlating with PL.
- 50% of trainees achieved proficiency in PL, with some demonstrating skill improvement.
Conclusions:
- The Patriot system's parameters correlate with observational assessments.
- The Patriot motion tracker effectively measures surgical skill retention.
- Automated scoring systems like Patriot can enhance surgical training curricula.

