BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE

Detalhes bibliográficos
Autor(a) principal: MANSUR,HENRIQUE
Data de Publicação: 2018
Outros Autores: ALVAREZ,RAFAEL, FREITAS,ANDERSON, GONÇALVES,CESAR BARBOSA, RAMOS,MAX ROGERIO FREITAS
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Ortopédica Brasileira (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522018000300162
Resumo: ABSTRACT Objectives To analyze the results of biomechanical assays of the fixation of Pauwels type II femoral neck fractures in synthetic bones, using two parallel cannulated screws or three cannulated screws in an inverted pyramid formation. Methods Ten Brazilian-made synthetic bones were divided into 2 groups. Groups A and B utilized three and two cannulated screws, respectively, after osteotomy in the middle third of the femur, perpendicular to the axis of the femoral neck, simulating a Pauwels type II femoral neck fracture. The resistance of these fixations was analyzed by compression on the axis of the force resulting from hip compression, simulated with a manual hydraulic press. The T-test and post hoc analysis were used to compare the groups, and the significance criterion adopted was p < 0.05. Results In group A, which used fixation with three screws, synthesis failure was seen at a mean force of 526 N. In group B, which used two screws, the mean force was 466 N. The results presented a statistically significant difference (p = 0.02). Conclusion The osteosynthesis of femoral neck fractures in synthetic bone fixated with two screws presented inferior results to fixation with three screws. Level of Evidence III; Case-control study.
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spelling BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONEBone screwsFemoral neckHip fracturesABSTRACT Objectives To analyze the results of biomechanical assays of the fixation of Pauwels type II femoral neck fractures in synthetic bones, using two parallel cannulated screws or three cannulated screws in an inverted pyramid formation. Methods Ten Brazilian-made synthetic bones were divided into 2 groups. Groups A and B utilized three and two cannulated screws, respectively, after osteotomy in the middle third of the femur, perpendicular to the axis of the femoral neck, simulating a Pauwels type II femoral neck fracture. The resistance of these fixations was analyzed by compression on the axis of the force resulting from hip compression, simulated with a manual hydraulic press. The T-test and post hoc analysis were used to compare the groups, and the significance criterion adopted was p < 0.05. Results In group A, which used fixation with three screws, synthesis failure was seen at a mean force of 526 N. In group B, which used two screws, the mean force was 466 N. The results presented a statistically significant difference (p = 0.02). Conclusion The osteosynthesis of femoral neck fractures in synthetic bone fixated with two screws presented inferior results to fixation with three screws. Level of Evidence III; Case-control study.ATHA EDITORA2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522018000300162Acta Ortopédica Brasileira v.26 n.3 2018reponame:Acta Ortopédica Brasileira (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1590/1413-785220182603182288info:eu-repo/semantics/openAccessMANSUR,HENRIQUEALVAREZ,RAFAELFREITAS,ANDERSONGONÇALVES,CESAR BARBOSARAMOS,MAX ROGERIO FREITASeng2018-06-12T00:00:00Zoai:scielo:S1413-78522018000300162Revistahttp://www.actaortopedica.com.br/https://old.scielo.br/oai/scielo-oai.php1atha@uol.com.br||actaortopedicabrasileira@uol.com.br1809-44061413-7852opendoar:2018-06-12T00:00Acta Ortopédica Brasileira (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false
dc.title.none.fl_str_mv BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
title BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
spellingShingle BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
MANSUR,HENRIQUE
Bone screws
Femoral neck
Hip fractures
title_short BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
title_full BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
title_fullStr BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
title_full_unstemmed BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
title_sort BIOMECHANICAL ANALYSIS OF FEMORAL NECK FRACTURE FIXATION IN SYNTHETIC BONE
author MANSUR,HENRIQUE
author_facet MANSUR,HENRIQUE
ALVAREZ,RAFAEL
FREITAS,ANDERSON
GONÇALVES,CESAR BARBOSA
RAMOS,MAX ROGERIO FREITAS
author_role author
author2 ALVAREZ,RAFAEL
FREITAS,ANDERSON
GONÇALVES,CESAR BARBOSA
RAMOS,MAX ROGERIO FREITAS
author2_role author
author
author
author
dc.contributor.author.fl_str_mv MANSUR,HENRIQUE
ALVAREZ,RAFAEL
FREITAS,ANDERSON
GONÇALVES,CESAR BARBOSA
RAMOS,MAX ROGERIO FREITAS
dc.subject.por.fl_str_mv Bone screws
Femoral neck
Hip fractures
topic Bone screws
Femoral neck
Hip fractures
description ABSTRACT Objectives To analyze the results of biomechanical assays of the fixation of Pauwels type II femoral neck fractures in synthetic bones, using two parallel cannulated screws or three cannulated screws in an inverted pyramid formation. Methods Ten Brazilian-made synthetic bones were divided into 2 groups. Groups A and B utilized three and two cannulated screws, respectively, after osteotomy in the middle third of the femur, perpendicular to the axis of the femoral neck, simulating a Pauwels type II femoral neck fracture. The resistance of these fixations was analyzed by compression on the axis of the force resulting from hip compression, simulated with a manual hydraulic press. The T-test and post hoc analysis were used to compare the groups, and the significance criterion adopted was p < 0.05. Results In group A, which used fixation with three screws, synthesis failure was seen at a mean force of 526 N. In group B, which used two screws, the mean force was 466 N. The results presented a statistically significant difference (p = 0.02). Conclusion The osteosynthesis of femoral neck fractures in synthetic bone fixated with two screws presented inferior results to fixation with three screws. Level of Evidence III; Case-control study.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-01
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=S1413-78522018000300162
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522018000300162
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1413-785220182603182288
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 ATHA EDITORA
publisher.none.fl_str_mv ATHA EDITORA
dc.source.none.fl_str_mv Acta Ortopédica Brasileira v.26 n.3 2018
reponame:Acta Ortopédica Brasileira (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 Acta Ortopédica Brasileira (Online)
collection Acta Ortopédica Brasileira (Online)
repository.name.fl_str_mv Acta Ortopédica Brasileira (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
repository.mail.fl_str_mv 1atha@uol.com.br||actaortopedicabrasileira@uol.com.br
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