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A Low-Cost, Passive Navigation Training System for Image-Guided Spinal Intervention.

Daniel Lorias-Espinoza¹, Vicente González Carranza², Fernando Chico-Ponce de León²

¹Electrical Department, Research and Advanced Studies Center of the National Polytechnic Institute of Mexico (Cinvestav - IPN). Av. IPN No 2508, Col San Pedro Zacatenco, México DF, Mexico.

World Neurosurgery

|August 19, 2016

Summary

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This study introduces Spine MovDigSys 01, a low-cost simulator for spinal surgery training. It enables 3D navigation using 2D images, helping novice surgeons develop essential skills economically.

Area of Science:

Medical Simulation
Surgical Navigation Technology
Spinal Interventions Training

Background:

Image-guided spinal interventions rely on navigation technology for resident training.
Developing 3D interpretation of 2D data and surgical instrument interaction is crucial.
A lack of inexpensive surgical simulators for spinal procedures exists.

Purpose of the Study:

To design and evaluate a low-cost spinal surgery simulator (Spine MovDigSys 01).
To enable 3D navigation via 2D images without restricting surgeon movement.
To provide an economical tool for basic surgical skill development.

Main Methods:

Developed a system with an anatomical lumbar model and two webcams.
Utilized MATLAB software for passive digitization of surgical instruments.

Keywords:

Metric-based teaching Spine simulator Spine trainer simulator Training in neurosurgery

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Conducted proof-of-concept tasks and pilot testing with 12 surgeons for feedback.

Main Results:

Accurately obtained operator metrics: time, length, angle, speed, and acceleration.
Converted raw data into assessment metrics like smoothness and linearity.
Demonstrated the system's ability to digitize instrument position and orientation.

Conclusions:

The Spine MovDigSys 01 facilitates image-guided navigation and metric generation for spinal surgery training.
The system allows graphic recording of instrument paths.
It is a valuable, economical tool for novice surgeons to acquire fundamental skills.