Validation of a Cost-effective Cast Saw Simulation-based Educational Module to Improve Cast Removal Safety.

Area of Science:

• Medical Simulation
• Pediatric Orthopedics
• Surgical Skills Training

Background:

• Pediatric cast removal carries risks due to inexperience.
• A need exists for effective, economical training tools for cast saw use.

Purpose of the Study:

• To validate a reproducible and economical wax model for assessing pediatric cast saw performance.
• To establish a simulation tool for grading trainee proficiency.

Main Methods:

• Wax models simulating pediatric limbs were cast and cut by experienced (n=15) and inexperienced (n=15) users.
• Cast saw performance was evaluated by measuring indentations in the wax.
• Metrics included total indentation length, maximum depth, and maximum width.

Main Results:

• Inexperienced users left significantly more extensive indentations (526.56 mm total length) than experienced users (156.57 mm).
• Inexperienced users also showed greater average maximum depth (1.91 mm vs. 1.06 mm) and width (3.24 mm vs. 2.19 mm).
• Analysis demonstrated the model's ability to discriminate between skill levels.

Conclusions:

• The wax model is a valid, cost-effective, and reproducible educational tool for cast saw training.
• It objectively measures performance and distinguishes novice from experienced users.
• The simulation provides valuable feedback for all skill levels.