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A 3D-Printed Simulator and Teaching Module for Placing S2-Alar-Iliac Screws
Hansen Bow1, Scott L Zuckerman1, Brenton Griffith2
1Department of Neurosurgery, Vanderbilt University Medical Center, Nashville, Tennessee.
Operative Neurosurgery (Hagerstown, Md.)
|June 25, 2019
Summary
A novel 3D-printed simulator improved S2-alar-iliac (S2AI) screw placement accuracy and reduced the need for diagnostic radiographs. This tool enhances surgical training for spinal arthrodesis procedures.
Area of Science:
- Spinal Surgery
- Medical Simulation
- Orthopedic Technology
Background:
- S2-alar-iliac (S2AI) screws are crucial for spinal arthrodesis.
- Challenges include free-hand screw trajectory and obtaining diagnostic radiographs.
Purpose of the Study:
- Develop and present a 3D-printed S2AI screw placement simulator.
- Address challenges in surgical training for S2AI screw placement.
Main Methods:
- Utilized 3D printing to create life-sized pelvic models.
- Trained participants on free-hand S2AI screw placement using the simulator.
- Practiced acquiring diagnostic radiographs (teardrop view) with the simulator.
Main Results:
- Significantly increased S2AI screw placement accuracy (left: 17% to 80%; right: 7% to 100%).
- Reduced the number of radiographs required to obtain the correct diagnostic view.
Conclusions:
- The S2AI simulator enhances surgical trainees' intuition for screw trajectory.
- Simulator practice improves diagnostic radiograph acquisition efficiency.
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