Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons

Detalhes bibliográficos
Autor(a) principal: Farcic,Thiago S.
Data de Publicação: 2013
Outros Autores: Baldan,Cristiano S., Cattapan,Carla G., Parizotto,Nivaldo A., João,Silvia M. A., Casarotto,Raquel A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physical Therapy
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552013000300263
Resumo: BACKGROUND: The application time of therapeutic ultrasound is an infrequently studied dosimetric variable that affects tissue repair.OBJECTIVES: The aim of this study was to evaluate the effects of different treatment times of therapeutic ultrasound (US) on the organization of collagen fibers in the tendons of rats.METHOD: Forty Wistar rats were selected (300±45 g), and the rats were divided into five groups (n=8 for each group): Control, without tenotomy or any treatment; tenotomy group, with tenotomy and without treatment; US groups (US1, US2, and US3), subjected to tenotomy and treated with US for one, two, or three minutes per area of the transducer, respectively. The animals were sacrificed on the 12th post-operative day, and the tendons were surgically removed for analyses of the collagen fiber organization by means of birefringence analysis.RESULTS: The collagen fibers exhibited better aggregation and organization in the US3 group compared with the tenotomy group (p<0.05).CONCLUSIONS: The findings suggest that US applied for three minutes per treated area improves the organization of collagen fibers during rat tendon repair.
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spelling Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendonstherapeutic ultrasoundAchilles tendonphysical therapycollagenwound healingBACKGROUND: The application time of therapeutic ultrasound is an infrequently studied dosimetric variable that affects tissue repair.OBJECTIVES: The aim of this study was to evaluate the effects of different treatment times of therapeutic ultrasound (US) on the organization of collagen fibers in the tendons of rats.METHOD: Forty Wistar rats were selected (300±45 g), and the rats were divided into five groups (n=8 for each group): Control, without tenotomy or any treatment; tenotomy group, with tenotomy and without treatment; US groups (US1, US2, and US3), subjected to tenotomy and treated with US for one, two, or three minutes per area of the transducer, respectively. The animals were sacrificed on the 12th post-operative day, and the tendons were surgically removed for analyses of the collagen fiber organization by means of birefringence analysis.RESULTS: The collagen fibers exhibited better aggregation and organization in the US3 group compared with the tenotomy group (p<0.05).CONCLUSIONS: The findings suggest that US applied for three minutes per treated area improves the organization of collagen fibers during rat tendon repair.Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia 2013-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552013000300263Brazilian Journal of Physical Therapy v.17 n.3 2013reponame:Brazilian Journal of Physical Therapyinstname:Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)instacron:ABRAPG-FT10.1590/S1413-35552012005000090info:eu-repo/semantics/openAccessFarcic,Thiago S.Baldan,Cristiano S.Cattapan,Carla G.Parizotto,Nivaldo A.João,Silvia M. A.Casarotto,Raquel A.eng2015-10-26T00:00:00Zoai:scielo:S1413-35552013000300263Revistahttps://www.scielo.br/j/rbfis/https://old.scielo.br/oai/scielo-oai.phpcontato@rbf-bjpt.org.br||contato@rbf-bjpt.org.br1809-92461413-3555opendoar:2015-10-26T00:00Brazilian Journal of Physical Therapy - Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)false
dc.title.none.fl_str_mv Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
title Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
spellingShingle Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
Farcic,Thiago S.
therapeutic ultrasound
Achilles tendon
physical therapy
collagen
wound healing
title_short Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
title_full Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
title_fullStr Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
title_full_unstemmed Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
title_sort Treatment time of ultrasound therapy interferes with the organization of collagen fibers in rat tendons
author Farcic,Thiago S.
author_facet Farcic,Thiago S.
Baldan,Cristiano S.
Cattapan,Carla G.
Parizotto,Nivaldo A.
João,Silvia M. A.
Casarotto,Raquel A.
author_role author
author2 Baldan,Cristiano S.
Cattapan,Carla G.
Parizotto,Nivaldo A.
João,Silvia M. A.
Casarotto,Raquel A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Farcic,Thiago S.
Baldan,Cristiano S.
Cattapan,Carla G.
Parizotto,Nivaldo A.
João,Silvia M. A.
Casarotto,Raquel A.
dc.subject.por.fl_str_mv therapeutic ultrasound
Achilles tendon
physical therapy
collagen
wound healing
topic therapeutic ultrasound
Achilles tendon
physical therapy
collagen
wound healing
description BACKGROUND: The application time of therapeutic ultrasound is an infrequently studied dosimetric variable that affects tissue repair.OBJECTIVES: The aim of this study was to evaluate the effects of different treatment times of therapeutic ultrasound (US) on the organization of collagen fibers in the tendons of rats.METHOD: Forty Wistar rats were selected (300±45 g), and the rats were divided into five groups (n=8 for each group): Control, without tenotomy or any treatment; tenotomy group, with tenotomy and without treatment; US groups (US1, US2, and US3), subjected to tenotomy and treated with US for one, two, or three minutes per area of the transducer, respectively. The animals were sacrificed on the 12th post-operative day, and the tendons were surgically removed for analyses of the collagen fiber organization by means of birefringence analysis.RESULTS: The collagen fibers exhibited better aggregation and organization in the US3 group compared with the tenotomy group (p<0.05).CONCLUSIONS: The findings suggest that US applied for three minutes per treated area improves the organization of collagen fibers during rat tendon repair.
publishDate 2013
dc.date.none.fl_str_mv 2013-06-01
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=S1413-35552013000300263
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-35552013000300263
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1413-35552012005000090
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 Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia
publisher.none.fl_str_mv Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia
dc.source.none.fl_str_mv Brazilian Journal of Physical Therapy v.17 n.3 2013
reponame:Brazilian Journal of Physical Therapy
instname:Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)
instacron:ABRAPG-FT
instname_str Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)
instacron_str ABRAPG-FT
institution ABRAPG-FT
reponame_str Brazilian Journal of Physical Therapy
collection Brazilian Journal of Physical Therapy
repository.name.fl_str_mv Brazilian Journal of Physical Therapy - Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia (ABRAPG-FT)
repository.mail.fl_str_mv contato@rbf-bjpt.org.br||contato@rbf-bjpt.org.br
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