Intraoperative surgical instrument guidance for spinal screw placement procedures using diffuse reflectance spectroscopy

Abstract (2020)

Authors

A. Swamy Medical Instruments & Bio-Inspired Technology - Mechanical, Maritime and Materials Engineering
Gustav Burström Karolinska Institutet
J. Dankelman Medical Instruments & Bio-Inspired Technology - Mechanical, Maritime and Materials Engineering
B.H.W. Hendriks Medical Instruments & Bio-Inspired Technology - Mechanical, Maritime and Materials Engineering
Jarich W. Spliethoff Philips Research
Drazenko Babic Philips Research
Christian Reich Philips Research
Joanneke Groen Philips Research
Stefan Ruschke Technische Universität München
John M. Racadio Cincinnati Children’s Hospital Medical Center
Erik Edström Karolinska Institutet
Adrian Elmi Terander Karolinska Institutet
Research Group
Medical Instruments & Bio-Inspired Technology (Mechanical, Maritime and Materials Engineering) (TU Delft)
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Published Date

2020

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Biomechanical Engineering

Research Group

Medical Instruments & Bio-Inspired Technology

Abstract

Safe and accurate placement of spinal screws remains a critical step during open and minimally invasive spinal fusion surgery. We investigated the application of diffuse reflectance spectroscopy (DRS) for real-time instrument guidance during a spinal screw placement procedure. A custom-built screw probe with integrated optical fibers was inserted into a vertebra under image guidance in an ex vivo human setting. We found that fat content derived from the spectra gradually changed as the probe approached the cortical bone boundary. The results indicate that DRS integrated into surgical instruments has the potential to improve the safety and accuracy of spinal screw placement procedures.