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BMC Surgery
Published in: BMC Surgery 1/2022

Open Access 01-12-2022 | Research

A quantitative accuracy assessment of the use of a rigid robotic arm in navigated placement of 726 pedicle screws

Authors: Carlo Alberto Benech, Rosa Perez, Franco Benech, Torrey Shirk, Brandon S. Bucklen

Published in: BMC Surgery | Issue 1/2022

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Abstract

Background

Traditional minimally invasive fluoroscopy-based techniques for pedicle screw placement utilize guidance, which may require fluoroscopic shots. Computerized tomography (CT) navigation results in more accurate screw placement. Robotic surgery seeks to establish access and trajectory with greater accuracy.

Objective

This study evaluated the screw placement accuracy of a robotic platform.

Methods

Demographic data, preoperative/postoperative CT scans, and complication rates of 127 patients who underwent lumbosacral pedicle screw placement with minimally invasive navigated robotic guidance using preoperative CT were analyzed.

Results

On the GRS scale, 97.9% (711/726) of screws were graded A or B, 1.7% (12/726) of screws graded C, 0.4% (3/726) of screws graded D, and 0% graded E. Average offset from preoperative plan to final screw placement was 1.9 ± 1.5 mm from tip, 2.2 ± 1.4 mm from tail and 2.9 ± 2.3° of angulation.

Conclusions

Robotic-assisted surgery utilizing preoperative CT workflow with intraoperative fluoroscopy-based registration improves pedicle screw placement accuracy within a patient’s pedicles.
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Metadata
Title
A quantitative accuracy assessment of the use of a rigid robotic arm in navigated placement of 726 pedicle screws
Authors
Carlo Alberto Benech
Rosa Perez
Franco Benech
Torrey Shirk
Brandon S. Bucklen
Publication date
01-12-2022
Publisher
BioMed Central
Published in
BMC Surgery / Issue 1/2022
Electronic ISSN: 1471-2482
DOI
https://doi.org/10.1186/s12893-022-01838-y

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