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Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws

Purpose. To describe the minimally invasive technique for cement augmentation of cannulated and fenestrated screws using an injection cannula as well as to report its safety and efficacy. Methods. A total of 157 cannulated and fenestrated pedicle screws had been cement-augmented during minimally inv...

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Autores principales: Klingler, Jan-Helge, Scholz, Christoph, Kogias, Evangelos, Sircar, Ronen, Krüger, Marie T., Volz, Florian, Scheiwe, Christian, Hubbe, Ulrich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446514/
https://www.ncbi.nlm.nih.gov/pubmed/26075297
http://dx.doi.org/10.1155/2015/979186
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author Klingler, Jan-Helge
Scholz, Christoph
Kogias, Evangelos
Sircar, Ronen
Krüger, Marie T.
Volz, Florian
Scheiwe, Christian
Hubbe, Ulrich
author_facet Klingler, Jan-Helge
Scholz, Christoph
Kogias, Evangelos
Sircar, Ronen
Krüger, Marie T.
Volz, Florian
Scheiwe, Christian
Hubbe, Ulrich
author_sort Klingler, Jan-Helge
collection PubMed
description Purpose. To describe the minimally invasive technique for cement augmentation of cannulated and fenestrated screws using an injection cannula as well as to report its safety and efficacy. Methods. A total of 157 cannulated and fenestrated pedicle screws had been cement-augmented during minimally invasive posterior screw-rod spondylodesis in 35 patients from January to December 2012. Retrospective evaluation of cement extravasation and screw loosening was carried out in postoperative plain radiographs and thin-sliced triplanar computed tomography scans. Results. Twenty-seven, largely prevertebral cement extravasations were detected in 157 screws (17.2%). None of the cement extravasations was causing a clinical sequela like a new neurological deficit. One screw loosening was noted (0.6%) after a mean follow-up of 12.8 months. We observed no cementation-associated complication like pulmonary embolism or hemodynamic insufficiency. Conclusions. The presented minimally invasive cement augmentation technique using an injection cannula facilitates convenient and safe cement delivery through polyaxial cannulated and fenestrated screws during minimally invasive screw-rod spondylodesis. Nevertheless, the optimal injection technique and design of fenestrated screws have yet to be identified. This trial is registered with German Clinical Trials DRKS00006726.
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spelling pubmed-44465142015-06-14 Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws Klingler, Jan-Helge Scholz, Christoph Kogias, Evangelos Sircar, Ronen Krüger, Marie T. Volz, Florian Scheiwe, Christian Hubbe, Ulrich ScientificWorldJournal Clinical Study Purpose. To describe the minimally invasive technique for cement augmentation of cannulated and fenestrated screws using an injection cannula as well as to report its safety and efficacy. Methods. A total of 157 cannulated and fenestrated pedicle screws had been cement-augmented during minimally invasive posterior screw-rod spondylodesis in 35 patients from January to December 2012. Retrospective evaluation of cement extravasation and screw loosening was carried out in postoperative plain radiographs and thin-sliced triplanar computed tomography scans. Results. Twenty-seven, largely prevertebral cement extravasations were detected in 157 screws (17.2%). None of the cement extravasations was causing a clinical sequela like a new neurological deficit. One screw loosening was noted (0.6%) after a mean follow-up of 12.8 months. We observed no cementation-associated complication like pulmonary embolism or hemodynamic insufficiency. Conclusions. The presented minimally invasive cement augmentation technique using an injection cannula facilitates convenient and safe cement delivery through polyaxial cannulated and fenestrated screws during minimally invasive screw-rod spondylodesis. Nevertheless, the optimal injection technique and design of fenestrated screws have yet to be identified. This trial is registered with German Clinical Trials DRKS00006726. Hindawi Publishing Corporation 2015 2015-05-14 /pmc/articles/PMC4446514/ /pubmed/26075297 http://dx.doi.org/10.1155/2015/979186 Text en Copyright © 2015 Jan-Helge Klingler et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Study
Klingler, Jan-Helge
Scholz, Christoph
Kogias, Evangelos
Sircar, Ronen
Krüger, Marie T.
Volz, Florian
Scheiwe, Christian
Hubbe, Ulrich
Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title_full Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title_fullStr Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title_full_unstemmed Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title_short Minimally Invasive Technique for PMMA Augmentation of Fenestrated Screws
title_sort minimally invasive technique for pmma augmentation of fenestrated screws
topic Clinical Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4446514/
https://www.ncbi.nlm.nih.gov/pubmed/26075297
http://dx.doi.org/10.1155/2015/979186
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