The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength

Detalhes bibliográficos
Autor(a) principal: Fleury,Rodrigo Barra Caiado
Data de Publicação: 2020
Outros Autores: Shimano,Antônio Carlos, Matos,Thiago Dantas, Teixeira,Kelsen de Oliveira, Romero,Valéria, Defino,Helton Luiz Aparecido
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ortopedia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000600695
Resumo: Abstract Objective Compare by mechanical tests the pullout resistance and the insertion torque of rough and smooth pedicle screws. Methods Pedicle screws with rough surface and smooth surface, with diameters of 4.8; 5.5 and 6.5 mm, were inserted in polyurethane blocks with density of 10 PCF (0.16 g/cm3). Insertion torque and pullout strength were assessed. Results The pullout strength of the rough surface and smooth surface screws did not differ, except in the group of 4.8 mm diameter screws. In this group, the rough surface screws showed greater resistance to pullout. Conclusion Pedicle screws with a rough surface did not show increased pullout resistance in the acute phase of their insertion in polyurethane blocks compared to smooth surface screws. The rough surface screws had a higher insertion torque than the smooth surface screws, depending on the diameter of the screw and the preparation of the pilot hole.
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spelling The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strengthspinebone screwsbiomechanical phenomenaAbstract Objective Compare by mechanical tests the pullout resistance and the insertion torque of rough and smooth pedicle screws. Methods Pedicle screws with rough surface and smooth surface, with diameters of 4.8; 5.5 and 6.5 mm, were inserted in polyurethane blocks with density of 10 PCF (0.16 g/cm3). Insertion torque and pullout strength were assessed. Results The pullout strength of the rough surface and smooth surface screws did not differ, except in the group of 4.8 mm diameter screws. In this group, the rough surface screws showed greater resistance to pullout. Conclusion Pedicle screws with a rough surface did not show increased pullout resistance in the acute phase of their insertion in polyurethane blocks compared to smooth surface screws. The rough surface screws had a higher insertion torque than the smooth surface screws, depending on the diameter of the screw and the preparation of the pilot hole.Sociedade Brasileira de Ortopedia e Traumatologia2020-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000600695Revista Brasileira de Ortopedia v.55 n.6 2020reponame:Revista Brasileira de Ortopedia (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1055/s-0040-1710072info:eu-repo/semantics/openAccessFleury,Rodrigo Barra CaiadoShimano,Antônio CarlosMatos,Thiago DantasTeixeira,Kelsen de OliveiraRomero,ValériaDefino,Helton Luiz Aparecidoeng2021-02-01T00:00:00Zoai:scielo:S0102-36162020000600695Revistahttp://www.rbo.org.br/https://old.scielo.br/oai/scielo-oai.php||rbo@sbot.org.br1982-43780102-3616opendoar:2021-02-01T00:00Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false
dc.title.none.fl_str_mv The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
title The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
spellingShingle The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
Fleury,Rodrigo Barra Caiado
spine
bone screws
biomechanical phenomena
title_short The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
title_full The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
title_fullStr The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
title_full_unstemmed The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
title_sort The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength
author Fleury,Rodrigo Barra Caiado
author_facet Fleury,Rodrigo Barra Caiado
Shimano,Antônio Carlos
Matos,Thiago Dantas
Teixeira,Kelsen de Oliveira
Romero,Valéria
Defino,Helton Luiz Aparecido
author_role author
author2 Shimano,Antônio Carlos
Matos,Thiago Dantas
Teixeira,Kelsen de Oliveira
Romero,Valéria
Defino,Helton Luiz Aparecido
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Fleury,Rodrigo Barra Caiado
Shimano,Antônio Carlos
Matos,Thiago Dantas
Teixeira,Kelsen de Oliveira
Romero,Valéria
Defino,Helton Luiz Aparecido
dc.subject.por.fl_str_mv spine
bone screws
biomechanical phenomena
topic spine
bone screws
biomechanical phenomena
description Abstract Objective Compare by mechanical tests the pullout resistance and the insertion torque of rough and smooth pedicle screws. Methods Pedicle screws with rough surface and smooth surface, with diameters of 4.8; 5.5 and 6.5 mm, were inserted in polyurethane blocks with density of 10 PCF (0.16 g/cm3). Insertion torque and pullout strength were assessed. Results The pullout strength of the rough surface and smooth surface screws did not differ, except in the group of 4.8 mm diameter screws. In this group, the rough surface screws showed greater resistance to pullout. Conclusion Pedicle screws with a rough surface did not show increased pullout resistance in the acute phase of their insertion in polyurethane blocks compared to smooth surface screws. The rough surface screws had a higher insertion torque than the smooth surface screws, depending on the diameter of the screw and the preparation of the pilot hole.
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=S0102-36162020000600695
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162020000600695
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1055/s-0040-1710072
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 Ortopedia e Traumatologia
publisher.none.fl_str_mv Sociedade Brasileira de Ortopedia e Traumatologia
dc.source.none.fl_str_mv Revista Brasileira de Ortopedia v.55 n.6 2020
reponame:Revista Brasileira de Ortopedia (Online)
instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
instacron:SBOT
instname_str Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
instacron_str SBOT
institution SBOT
reponame_str Revista Brasileira de Ortopedia (Online)
collection Revista Brasileira de Ortopedia (Online)
repository.name.fl_str_mv Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
repository.mail.fl_str_mv ||rbo@sbot.org.br
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