Migration and strains induced by different designs of force-closed stems for THA
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
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=S0102-36162015000600686 |
Resumo: | ABSTRACT Objectives: Subtle differences in stem design can result in different mechanical responses of the total hip arthroplasty. Tests measuring migration of the stem relative to the femur, as well as the strains in the cement mantle and on the femur can detect different mechanical behavior between stems. Methods: In this article, conical, double and triple tapered stems were implanted in composite femurs and subjected to static and cyclic loads. Stems differed mainly on taper angle, calcar radius and proximal stiffness. Stem migration and strains on the femur and in the cement mantle were achieved. Results: Significant differences (p < 0.05) were noted in the permanent rotation between double and triple tapers, in the strains on the proximal medial femur between triple and both conical and double tapers, and in the strains on the lateral proximal femur between double tapers and both conical and triple tapers. Conclusion: The proposed mechanical tests were able to detect significant differences in the behavior of these resembling stems. Stem proximal stiffness and the calcar radius of the stem influence its rotational stability and the strain transmission to the femur. |
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Revista Brasileira de Ortopedia (Online) |
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|
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Migration and strains induced by different designs of force-closed stems for THAHip arthroplastyProsthesis designMechanical phenomena.ABSTRACT Objectives: Subtle differences in stem design can result in different mechanical responses of the total hip arthroplasty. Tests measuring migration of the stem relative to the femur, as well as the strains in the cement mantle and on the femur can detect different mechanical behavior between stems. Methods: In this article, conical, double and triple tapered stems were implanted in composite femurs and subjected to static and cyclic loads. Stems differed mainly on taper angle, calcar radius and proximal stiffness. Stem migration and strains on the femur and in the cement mantle were achieved. Results: Significant differences (p < 0.05) were noted in the permanent rotation between double and triple tapers, in the strains on the proximal medial femur between triple and both conical and double tapers, and in the strains on the lateral proximal femur between double tapers and both conical and triple tapers. Conclusion: The proposed mechanical tests were able to detect significant differences in the behavior of these resembling stems. Stem proximal stiffness and the calcar radius of the stem influence its rotational stability and the strain transmission to the femur.Sociedade Brasileira de Ortopedia e Traumatologia2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162015000600686Revista Brasileira de Ortopedia v.50 n.6 2015reponame:Revista Brasileira de Ortopedia (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1016/j.rboe.2015.09.003info:eu-repo/semantics/openAccessGriza,SandroGomes,Luiz Sérgio MarcelinoCervieri,AndréStrohaecker,Telmo Robertoeng2016-01-05T00:00:00Zoai:scielo:S0102-36162015000600686Revistahttp://www.rbo.org.br/https://old.scielo.br/oai/scielo-oai.php||rbo@sbot.org.br1982-43780102-3616opendoar:2016-01-05T00:00Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false |
dc.title.none.fl_str_mv |
Migration and strains induced by different designs of force-closed stems for THA |
title |
Migration and strains induced by different designs of force-closed stems for THA |
spellingShingle |
Migration and strains induced by different designs of force-closed stems for THA Griza,Sandro Hip arthroplasty Prosthesis design Mechanical phenomena. |
title_short |
Migration and strains induced by different designs of force-closed stems for THA |
title_full |
Migration and strains induced by different designs of force-closed stems for THA |
title_fullStr |
Migration and strains induced by different designs of force-closed stems for THA |
title_full_unstemmed |
Migration and strains induced by different designs of force-closed stems for THA |
title_sort |
Migration and strains induced by different designs of force-closed stems for THA |
author |
Griza,Sandro |
author_facet |
Griza,Sandro Gomes,Luiz Sérgio Marcelino Cervieri,André Strohaecker,Telmo Roberto |
author_role |
author |
author2 |
Gomes,Luiz Sérgio Marcelino Cervieri,André Strohaecker,Telmo Roberto |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Griza,Sandro Gomes,Luiz Sérgio Marcelino Cervieri,André Strohaecker,Telmo Roberto |
dc.subject.por.fl_str_mv |
Hip arthroplasty Prosthesis design Mechanical phenomena. |
topic |
Hip arthroplasty Prosthesis design Mechanical phenomena. |
description |
ABSTRACT Objectives: Subtle differences in stem design can result in different mechanical responses of the total hip arthroplasty. Tests measuring migration of the stem relative to the femur, as well as the strains in the cement mantle and on the femur can detect different mechanical behavior between stems. Methods: In this article, conical, double and triple tapered stems were implanted in composite femurs and subjected to static and cyclic loads. Stems differed mainly on taper angle, calcar radius and proximal stiffness. Stem migration and strains on the femur and in the cement mantle were achieved. Results: Significant differences (p < 0.05) were noted in the permanent rotation between double and triple tapers, in the strains on the proximal medial femur between triple and both conical and double tapers, and in the strains on the lateral proximal femur between double tapers and both conical and triple tapers. Conclusion: The proposed mechanical tests were able to detect significant differences in the behavior of these resembling stems. Stem proximal stiffness and the calcar radius of the stem influence its rotational stability and the strain transmission to the femur. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
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=S0102-36162015000600686 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162015000600686 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.rboe.2015.09.003 |
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.50 n.6 2015 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 |
_version_ |
1752122360039735296 |