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Improving Screw Accuracy and Reducing Overall Procedural Time in a Cadaveric Setting with the Robotic Navigation Platform

In a cadaveric study evaluating pedicle screw placement accuracy, placement time, and radiation dose, 10 surgeons with 2-23 years of experience placed a total of 160 pedicle screws with ExcelsiusGPS® and conventional techniques across MIS and open approaches. The use of ExcelsiusGPS® demonstrated:

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Improved screw placement accuracy

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Increased screw length and diameter

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Reduced radiation exposure

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Reduced MIS procedural time


Vaccaro, A. R. et al. ExcelsiusGPS® Robotic Navigation Platform Improves Screw Accuracy and Reduces Radiation Exposure Compared to Conventional Fluoroscopic Techniques in a Simulated Surgical Model. White paper (GMWP51). Globus Medical, Inc. (April 2018).

Improving Screw Placement Accuracy

Graph for Breaches by Technique in a Cadaveric Lab
Grade 0

Grade 0
(0 to <2mm)

Grade 1

Grade 1
(2 to <4mm)

Grade 2

Grade 2
(4 to <6mm)

Grade 3

Grade 3
(≥6mm)

Reducing Radiation Exposure

Graph for average number for fluoroscopic images

Increasing MIS Efficiency

Overall Procedure Time

Screw Placement Time

ExcelsiusGPS® Robotic Navigation significantly reduced the duration of screw insertion in a cadaveric setting, averaging 3.6 minutes per screw compared to the conventional MIS average of 7.7 minutes per screw.