CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Coluna/Columna |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512020000400287 |
Resumo: | ABSTRACT Objective To present a new principle for correction of the sagittal plane of the spine through the convergent or divergent placement of monoaxial pedicle screws in this plane, associated with compression or distraction, to provide lordotizing or kyphotizing leverage force. Method A statistical mechanical study of twenty-eight fixations in synthetic spine segments was performed. In fifteen pieces, pedicle screws were applied to the ends of the segments with positioning convergent to the center of the fixation. They were attached to the straight rods and subjected to compression force. The other thirteen segments were fixed with pedicle screws in a direction divergent to the center of the fixation, attached to the straight rods, and subjected to distraction force. Results To create kyphosis in the 15 synthetic segments of the spine, the mean pre-fixation Cobb angle was - 0.7° and the mean post-fixation angle was +15°. To create lordosis in the 13 segments, the mean pre-fixation Cobb angle was +1° and the mean post-fixation angle was +18°. The difference was confirmed by statistical mechanical tests and considered significant. However, there is no relevant difference between the mean angles for lordosis and kyphosis formation. Conclusions It was concluded that the correction of the sagittal plane of the spine by applying the new instrumentation method is efficient. A statistical mechanical test confirmed that the difference in Cobb degrees between pre- and post-fixation of the synthetic spine segments was considered significant in the creation of both kyphosis and lordosis. Level of evidence II C; Statistical mechanical study of synthetic spine segments. |
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|
spelling |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWSLordosisKyphosisSurgical Fixation DevicesRotationABSTRACT Objective To present a new principle for correction of the sagittal plane of the spine through the convergent or divergent placement of monoaxial pedicle screws in this plane, associated with compression or distraction, to provide lordotizing or kyphotizing leverage force. Method A statistical mechanical study of twenty-eight fixations in synthetic spine segments was performed. In fifteen pieces, pedicle screws were applied to the ends of the segments with positioning convergent to the center of the fixation. They were attached to the straight rods and subjected to compression force. The other thirteen segments were fixed with pedicle screws in a direction divergent to the center of the fixation, attached to the straight rods, and subjected to distraction force. Results To create kyphosis in the 15 synthetic segments of the spine, the mean pre-fixation Cobb angle was - 0.7° and the mean post-fixation angle was +15°. To create lordosis in the 13 segments, the mean pre-fixation Cobb angle was +1° and the mean post-fixation angle was +18°. The difference was confirmed by statistical mechanical tests and considered significant. However, there is no relevant difference between the mean angles for lordosis and kyphosis formation. Conclusions It was concluded that the correction of the sagittal plane of the spine by applying the new instrumentation method is efficient. A statistical mechanical test confirmed that the difference in Cobb degrees between pre- and post-fixation of the synthetic spine segments was considered significant in the creation of both kyphosis and lordosis. Level of evidence II C; Statistical mechanical study of synthetic spine segments.Sociedade Brasileira de Coluna2020-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512020000400287Coluna/Columna v.19 n.4 2020reponame:Coluna/Columnainstname:Sociedade Brasileira de Coluna (SBCO)instacron:SBCO10.1590/s1808-185120201904232531info:eu-repo/semantics/openAccessGARCIA,ENGUER BERALDOGARCIA,LILIANE FARIAGARCIA JÚNIOR,ENGUER BERALDOSÁ,ANDRÉ DEMATOS,VICTOR DE OLIVEIRACAMARINHA,JULIANA GARCIACAMARINHA,MARCOS FELIPEGONÇALVES,ROBERTO GARCIAGARCIA,EDUARDO BERALDOGIESBRECHT,SAULO TERROReng2020-10-08T00:00:00Zoai:scielo:S1808-18512020000400287Revistahttps://www.revistacoluna.org/ONGhttps://old.scielo.br/oai/scielo-oai.phpcoluna.columna@uol.com.br||revistacoluna@uol.com.br2177-014X1808-1851opendoar:2020-10-08T00:00Coluna/Columna - Sociedade Brasileira de Coluna (SBCO)false |
dc.title.none.fl_str_mv |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
title |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
spellingShingle |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS GARCIA,ENGUER BERALDO Lordosis Kyphosis Surgical Fixation Devices Rotation |
title_short |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
title_full |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
title_fullStr |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
title_full_unstemmed |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
title_sort |
CORRECTION OF THE SPINAL SAGITTAL PLANE: THE APPLICATION OF CONVERGENT OR DIVERGENT SCREWS |
author |
GARCIA,ENGUER BERALDO |
author_facet |
GARCIA,ENGUER BERALDO GARCIA,LILIANE FARIA GARCIA JÚNIOR,ENGUER BERALDO SÁ,ANDRÉ DE MATOS,VICTOR DE OLIVEIRA CAMARINHA,JULIANA GARCIA CAMARINHA,MARCOS FELIPE GONÇALVES,ROBERTO GARCIA GARCIA,EDUARDO BERALDO GIESBRECHT,SAULO TERROR |
author_role |
author |
author2 |
GARCIA,LILIANE FARIA GARCIA JÚNIOR,ENGUER BERALDO SÁ,ANDRÉ DE MATOS,VICTOR DE OLIVEIRA CAMARINHA,JULIANA GARCIA CAMARINHA,MARCOS FELIPE GONÇALVES,ROBERTO GARCIA GARCIA,EDUARDO BERALDO GIESBRECHT,SAULO TERROR |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
GARCIA,ENGUER BERALDO GARCIA,LILIANE FARIA GARCIA JÚNIOR,ENGUER BERALDO SÁ,ANDRÉ DE MATOS,VICTOR DE OLIVEIRA CAMARINHA,JULIANA GARCIA CAMARINHA,MARCOS FELIPE GONÇALVES,ROBERTO GARCIA GARCIA,EDUARDO BERALDO GIESBRECHT,SAULO TERROR |
dc.subject.por.fl_str_mv |
Lordosis Kyphosis Surgical Fixation Devices Rotation |
topic |
Lordosis Kyphosis Surgical Fixation Devices Rotation |
description |
ABSTRACT Objective To present a new principle for correction of the sagittal plane of the spine through the convergent or divergent placement of monoaxial pedicle screws in this plane, associated with compression or distraction, to provide lordotizing or kyphotizing leverage force. Method A statistical mechanical study of twenty-eight fixations in synthetic spine segments was performed. In fifteen pieces, pedicle screws were applied to the ends of the segments with positioning convergent to the center of the fixation. They were attached to the straight rods and subjected to compression force. The other thirteen segments were fixed with pedicle screws in a direction divergent to the center of the fixation, attached to the straight rods, and subjected to distraction force. Results To create kyphosis in the 15 synthetic segments of the spine, the mean pre-fixation Cobb angle was - 0.7° and the mean post-fixation angle was +15°. To create lordosis in the 13 segments, the mean pre-fixation Cobb angle was +1° and the mean post-fixation angle was +18°. The difference was confirmed by statistical mechanical tests and considered significant. However, there is no relevant difference between the mean angles for lordosis and kyphosis formation. Conclusions It was concluded that the correction of the sagittal plane of the spine by applying the new instrumentation method is efficient. A statistical mechanical test confirmed that the difference in Cobb degrees between pre- and post-fixation of the synthetic spine segments was considered significant in the creation of both kyphosis and lordosis. Level of evidence II C; Statistical mechanical study of synthetic spine segments. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512020000400287 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-18512020000400287 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1808-185120201904232531 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Coluna |
publisher.none.fl_str_mv |
Sociedade Brasileira de Coluna |
dc.source.none.fl_str_mv |
Coluna/Columna v.19 n.4 2020 reponame:Coluna/Columna instname:Sociedade Brasileira de Coluna (SBCO) instacron:SBCO |
instname_str |
Sociedade Brasileira de Coluna (SBCO) |
instacron_str |
SBCO |
institution |
SBCO |
reponame_str |
Coluna/Columna |
collection |
Coluna/Columna |
repository.name.fl_str_mv |
Coluna/Columna - Sociedade Brasileira de Coluna (SBCO) |
repository.mail.fl_str_mv |
coluna.columna@uol.com.br||revistacoluna@uol.com.br |
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1752126616432017408 |