Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis

Detalhes bibliográficos
Autor(a) principal: Chaudhari,Nileshkumar
Data de Publicação: 2020
Outros Autores: Godoy-Santos,Alexandre Leme, Netto,Cesar de Cesar, Rodriguez,Ramon, Dun,Shouchen, He,Jun Kit, McKissack,Haley, Fleisig,Glenn S., Pires,Eduardo Araujo, Shah,Ashish
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Einstein (São Paulo)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082020000100241
Resumo: ABSTRACT Objective To compare screw fixation strength for subtalar arthrodesis. Methods Eight matched pairs of cadaver feet underwent subtalar joint arthrodesis with two 7.3mm cannulated screws. Randomization was used to assign screw orientation, such that one foot in each pair was assigned dorsal to plantar screw orientation (DP Group), and the other foot, plantar to dorsal orientation (PD Group). Standard surgical technique with fluoroscopy was used for each approach. Following fixation, each specimen was loaded to failure with a Bionix ® 858 MTS device, applying a downward axial force at a distance to create torque. Torque to failure was compared between DP and PD Groups using Student’s t test, with p=0.05 used to determine statistical significance. Results Statistical analysis demonstrated that the mean torque to failure slightly favored the DP Group (37.3Nm) to the PD Group (32.2Nm). However, the difference between the two groups was not statistically significant (p=0.55). Conclusion In subtalar arthrodesis, there is no significant difference in construct strength between dorsal-to-plantar and plantar-to-dorsal screw orientation. The approach chosen by the surgeon should be based on factors other than the biomechanical strength of the screw orientation.
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spelling Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesisSubtalar jointArthrodesisAnkleJoint instabilityArthritisJoint diseasesABSTRACT Objective To compare screw fixation strength for subtalar arthrodesis. Methods Eight matched pairs of cadaver feet underwent subtalar joint arthrodesis with two 7.3mm cannulated screws. Randomization was used to assign screw orientation, such that one foot in each pair was assigned dorsal to plantar screw orientation (DP Group), and the other foot, plantar to dorsal orientation (PD Group). Standard surgical technique with fluoroscopy was used for each approach. Following fixation, each specimen was loaded to failure with a Bionix ® 858 MTS device, applying a downward axial force at a distance to create torque. Torque to failure was compared between DP and PD Groups using Student’s t test, with p=0.05 used to determine statistical significance. Results Statistical analysis demonstrated that the mean torque to failure slightly favored the DP Group (37.3Nm) to the PD Group (32.2Nm). However, the difference between the two groups was not statistically significant (p=0.55). Conclusion In subtalar arthrodesis, there is no significant difference in construct strength between dorsal-to-plantar and plantar-to-dorsal screw orientation. The approach chosen by the surgeon should be based on factors other than the biomechanical strength of the screw orientation.Instituto Israelita de Ensino e Pesquisa Albert Einstein2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-45082020000100241einstein (São Paulo) v.18 2020reponame:Einstein (São Paulo)instname:Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEPAE)instacron:IIEPAE10.31744/einstein_journal/2020ao5052info:eu-repo/semantics/openAccessChaudhari,NileshkumarGodoy-Santos,Alexandre LemeNetto,Cesar de CesarRodriguez,RamonDun,ShouchenHe,Jun KitMcKissack,HaleyFleisig,Glenn S.Pires,Eduardo AraujoShah,Ashisheng2020-03-03T00:00:00Zoai:scielo:S1679-45082020000100241Revistahttps://journal.einstein.br/pt-br/ONGhttps://old.scielo.br/oai/scielo-oai.php||revista@einstein.br2317-63851679-4508opendoar:2020-03-03T00:00Einstein (São Paulo) - Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEPAE)false
dc.title.none.fl_str_mv Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
title Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
spellingShingle Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
Chaudhari,Nileshkumar
Subtalar joint
Arthrodesis
Ankle
Joint instability
Arthritis
Joint diseases
title_short Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
title_full Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
title_fullStr Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
title_full_unstemmed Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
title_sort Biomechanical comparison of plantar-to-dorsal and dorsal-to-plantar screw fixation strength for subtalar arthrodesis
author Chaudhari,Nileshkumar
author_facet Chaudhari,Nileshkumar
Godoy-Santos,Alexandre Leme
Netto,Cesar de Cesar
Rodriguez,Ramon
Dun,Shouchen
He,Jun Kit
McKissack,Haley
Fleisig,Glenn S.
Pires,Eduardo Araujo
Shah,Ashish
author_role author
author2 Godoy-Santos,Alexandre Leme
Netto,Cesar de Cesar
Rodriguez,Ramon
Dun,Shouchen
He,Jun Kit
McKissack,Haley
Fleisig,Glenn S.
Pires,Eduardo Araujo
Shah,Ashish
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Chaudhari,Nileshkumar
Godoy-Santos,Alexandre Leme
Netto,Cesar de Cesar
Rodriguez,Ramon
Dun,Shouchen
He,Jun Kit
McKissack,Haley
Fleisig,Glenn S.
Pires,Eduardo Araujo
Shah,Ashish
dc.subject.por.fl_str_mv Subtalar joint
Arthrodesis
Ankle
Joint instability
Arthritis
Joint diseases
topic Subtalar joint
Arthrodesis
Ankle
Joint instability
Arthritis
Joint diseases
description ABSTRACT Objective To compare screw fixation strength for subtalar arthrodesis. Methods Eight matched pairs of cadaver feet underwent subtalar joint arthrodesis with two 7.3mm cannulated screws. Randomization was used to assign screw orientation, such that one foot in each pair was assigned dorsal to plantar screw orientation (DP Group), and the other foot, plantar to dorsal orientation (PD Group). Standard surgical technique with fluoroscopy was used for each approach. Following fixation, each specimen was loaded to failure with a Bionix ® 858 MTS device, applying a downward axial force at a distance to create torque. Torque to failure was compared between DP and PD Groups using Student’s t test, with p=0.05 used to determine statistical significance. Results Statistical analysis demonstrated that the mean torque to failure slightly favored the DP Group (37.3Nm) to the PD Group (32.2Nm). However, the difference between the two groups was not statistically significant (p=0.55). Conclusion In subtalar arthrodesis, there is no significant difference in construct strength between dorsal-to-plantar and plantar-to-dorsal screw orientation. The approach chosen by the surgeon should be based on factors other than the biomechanical strength of the screw orientation.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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=S1679-45082020000100241
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.31744/einstein_journal/2020ao5052
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 Instituto Israelita de Ensino e Pesquisa Albert Einstein
publisher.none.fl_str_mv Instituto Israelita de Ensino e Pesquisa Albert Einstein
dc.source.none.fl_str_mv einstein (São Paulo) v.18 2020
reponame:Einstein (São Paulo)
instname:Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEPAE)
instacron:IIEPAE
instname_str Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEPAE)
instacron_str IIEPAE
institution IIEPAE
reponame_str Einstein (São Paulo)
collection Einstein (São Paulo)
repository.name.fl_str_mv Einstein (São Paulo) - Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEPAE)
repository.mail.fl_str_mv ||revista@einstein.br
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