Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine

<b>Background.</b> Lateral approaches to the spine have gained increased popularity due to enabling minimally invasive access to the spine, less blood loss, decreased operative time, and less postoperative pain. The objective of the study was to analyze the use of intraoperative computed...

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Main Authors: Mirza Pojskić, Miriam Bopp, Benjamin Saß, Andreas Kirschbaum, Christopher Nimsky, Barbara Carl
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/11/5/646
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author Mirza Pojskić
Miriam Bopp
Benjamin Saß
Andreas Kirschbaum
Christopher Nimsky
Barbara Carl
author_facet Mirza Pojskić
Miriam Bopp
Benjamin Saß
Andreas Kirschbaum
Christopher Nimsky
Barbara Carl
author_sort Mirza Pojskić
collection DOAJ
description <b>Background.</b> Lateral approaches to the spine have gained increased popularity due to enabling minimally invasive access to the spine, less blood loss, decreased operative time, and less postoperative pain. The objective of the study was to analyze the use of intraoperative computed tomography with navigation and the implementation of augmented reality in facilitating a lateral approach to the spine. <b>Methods.</b> We prospectively analyzed all patients who underwent surgery with a lateral approach to the spine from September 2016 to January 2021 using intraoperative CT applying a 32-slice movable CT scanner, which was used for automatic navigation registration. Sixteen patients, with a median age of 64.3 years, were operated on using a lateral approach to the thoracic and lumbar spine and using intraoperative CT with navigation. Indications included a herniated disc (six patients), tumors (seven), instability following the fracture of the thoracic or lumbar vertebra (two), and spondylodiscitis (one). <b>Results.</b> Automatic registration, applying intraoperative CT, resulted in high accuracy (target registration error: 0.84 ± 0.10 mm). The effective radiation dose of the registration CT scans was 6.16 ± 3.91 mSv. In seven patients, a control iCT scan was performed for resection and implant control, with an ED of 4.51 ± 2.48 mSv. Augmented reality (AR) was used to support surgery in 11 cases, by visualizing the tumor outline, pedicle screws, herniated discs, and surrounding structures. Of the 16 patients, corpectomy was performed in six patients with the implantation of an expandable cage, and one patient underwent discectomy using the XLIF technique. One patient experienced perioperative complications. One patient died in the early postoperative course due to severe cardiorespiratory failure. Ten patients had improved and five had unchanged neurological status at the 3-month follow up. <b>Conclusions.</b> Intraoperative computed tomography with navigation facilitates the application of lateral approaches to the spine for a variety of indications, including fusion procedures, tumor resection, and herniated disc surgery.
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spelling doaj.art-176cf3f53eb940ff8314cfc6a2b190d02023-11-21T19:55:32ZengMDPI AGBrain Sciences2076-34252021-05-0111564610.3390/brainsci11050646Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the SpineMirza Pojskić0Miriam Bopp1Benjamin Saß2Andreas Kirschbaum3Christopher Nimsky4Barbara Carl5Department of Neurosurgery, University of Marburg, Baldingerstraße, 35043 Marburg, GermanyDepartment of Neurosurgery, University of Marburg, Baldingerstraße, 35043 Marburg, GermanyDepartment of Neurosurgery, University of Marburg, Baldingerstraße, 35043 Marburg, GermanyDepartment of Visceral, Thoracic and Vascular Surgery, University of Marburg, 35043 Marburg, GermanyDepartment of Neurosurgery, University of Marburg, Baldingerstraße, 35043 Marburg, GermanyDepartment of Neurosurgery, University of Marburg, Baldingerstraße, 35043 Marburg, Germany<b>Background.</b> Lateral approaches to the spine have gained increased popularity due to enabling minimally invasive access to the spine, less blood loss, decreased operative time, and less postoperative pain. The objective of the study was to analyze the use of intraoperative computed tomography with navigation and the implementation of augmented reality in facilitating a lateral approach to the spine. <b>Methods.</b> We prospectively analyzed all patients who underwent surgery with a lateral approach to the spine from September 2016 to January 2021 using intraoperative CT applying a 32-slice movable CT scanner, which was used for automatic navigation registration. Sixteen patients, with a median age of 64.3 years, were operated on using a lateral approach to the thoracic and lumbar spine and using intraoperative CT with navigation. Indications included a herniated disc (six patients), tumors (seven), instability following the fracture of the thoracic or lumbar vertebra (two), and spondylodiscitis (one). <b>Results.</b> Automatic registration, applying intraoperative CT, resulted in high accuracy (target registration error: 0.84 ± 0.10 mm). The effective radiation dose of the registration CT scans was 6.16 ± 3.91 mSv. In seven patients, a control iCT scan was performed for resection and implant control, with an ED of 4.51 ± 2.48 mSv. Augmented reality (AR) was used to support surgery in 11 cases, by visualizing the tumor outline, pedicle screws, herniated discs, and surrounding structures. Of the 16 patients, corpectomy was performed in six patients with the implantation of an expandable cage, and one patient underwent discectomy using the XLIF technique. One patient experienced perioperative complications. One patient died in the early postoperative course due to severe cardiorespiratory failure. Ten patients had improved and five had unchanged neurological status at the 3-month follow up. <b>Conclusions.</b> Intraoperative computed tomography with navigation facilitates the application of lateral approaches to the spine for a variety of indications, including fusion procedures, tumor resection, and herniated disc surgery.https://www.mdpi.com/2076-3425/11/5/646augmented realitycomputer-assisted surgeryeffective radiation doseimage-guided surgeryintraoperative imagingspine navigation
spellingShingle Mirza Pojskić
Miriam Bopp
Benjamin Saß
Andreas Kirschbaum
Christopher Nimsky
Barbara Carl
Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
Brain Sciences
augmented reality
computer-assisted surgery
effective radiation dose
image-guided surgery
intraoperative imaging
spine navigation
title Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
title_full Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
title_fullStr Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
title_full_unstemmed Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
title_short Intraoperative Computed Tomography-Based Navigation with Augmented Reality for Lateral Approaches to the Spine
title_sort intraoperative computed tomography based navigation with augmented reality for lateral approaches to the spine
topic augmented reality
computer-assisted surgery
effective radiation dose
image-guided surgery
intraoperative imaging
spine navigation
url https://www.mdpi.com/2076-3425/11/5/646
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