Inertial Measurement Unit-Assisted Implantation of Pedicle Screws in Combination With an Intraoperative 3-Dimensional/2-Dimensional Visualization of the Spine
| Autor: | Stefan Schaeren, Jonas Walti, Philippe C. Cattin, Gregory F. Jost, Luigi Mariani |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Male
musculoskeletal diseases Virtual position 030218 nuclear medicine & medical imaging 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Pedicle Screws Cadaver Inertial measurement unit Monitoring Intraoperative Humans Medicine Pedicle screw Aged business.industry Middle Aged musculoskeletal system Spine Sagittal plane Spinal Fusion Image-guided surgery medicine.anatomical_structure Surgery Computer-Assisted Female Surgery Lumbar spine Neurology (clinical) Implant business Nuclear medicine 030217 neurology & neurosurgery |
| Zdroj: | Operative Neurosurgery. 16:326-334 |
| ISSN: | 2332-4260 2332-4252 |
| DOI: | 10.1093/ons/opy141 |
| Popis: | BACKGROUND Inertial measurement units (IMUs) are microelectromechanical systems used to track orientation and motion. OBJECTIVE To use instruments mounted with IMUs in combination with a 3- and 2-dimensional (3D/2D) rendering of the computed-tomography scan (CT) to guide implantation of pedicle screws. METHODS Pedicle screws were implanted from T1 to S1 in 2 human cadavers. A software application enabled the surgeon to select the starting points and trajectories on a 3D/2D image of the spine, then locate these starting points on the exposed spine and apply the IMU-mounted instruments to reproduce the trajectories. The position of the screws was evaluated on the postoperative CT scan. RESULTS A total of 72 pedicle screws were implanted. Thirty-seven (77%) of the thoracic screws were within the pedicle (Heary I), 7 (15%) showed a lateral breach of the pedicle, and 4 (8%) violated the anterior or lateral vertebral body (Heary III). In the lumbar spine and S1, 21 screws (88%) were within the pedicle (Gertzbein 0), 2 (8%) screws had a pedicle wall breach 2 to |
| Databáze: | OpenAIRE |
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