Simulation device for shoulder reductions: overview of prototyping, testing, and design instructions.

Area of Science:

• Medical Simulation
• Orthopedic Training
• Biomedical Engineering

Background:

• Shoulder dislocations are frequent, yet effective training simulators are scarce.
• Current methods lack accessible tools for practicing reduction techniques against muscle tension.

Purpose of the Study:

• To design and describe an easily replicable, low-cost simulator for training shoulder reductions.
• To address the need for accessible simulation tools in medical education.

Main Methods:

• Iterative engineering design process informed by clinical expert needs analysis.
• Incorporated traction-countertraction and external rotation reduction methods.
• Utilized readily available materials like plywood, resistance bands, and 3D-printed components.

Main Results:

• The ReducTrain simulator costs under $200 to build and takes approximately 3 hours and 20 minutes to assemble.
• Durability testing indicates minimal degradation after 1000 uses, with potential resistance band wear after 2000 uses.
• Step-by-step instructions and a 3D-printable model file are provided for replication.

Conclusions:

• ReducTrain effectively fills a gap in emergency medicine and orthopedic simulation training.
• Its simplified anatomical design and robust construction facilitate easy upkeep and customization.
• The device is suitable for various instructional formats, leveraging public workshops and makerspaces.