Laser therapy in bone repair in rats: analysis of bone optical density
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
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=S1413-78522014000200071 |
Resumo: | OBJECTIVE: To investigate, by digital radiology, the bone regeneration process in rats submitted to femoral osteotomy and treated with low power laser therapy.METHODS: Forty-five Wistar rats were subjected to transverse osteotomy of the right femur and divided randomly into three experimental groups (n = 15): animals not treated with laser therapy G (C), animals that received laser therapy with λ: 660nm G (660nm) and animals that received laser therapy with λ: 830nm G (830nm). Animals were sacrificed after 7, 14 and 21 days. The bone calluses were evaluated by digital X-ray at 65 kVp, 7mA and 0.032 s exposures.RESULTS: The values obtained were submitted to variance analysis (ANOVA) followed by the Tukey-Kramer test. The significance level adopted was 5%. The groups G (C), G (660nm), and G (830nm) at the 7th day showed a significant bone development, with p <0.0116; the groups G (C), G (660nm), and G (830nm) at the 14th day showed values of p <0.0001; at the 21stday,a higher degree of bone repair were observed in group G (830nm), and G (660nm), with p <0.0169.CONCLUSION: Based on the radiographic findings, G (830nm) showed more complete bone regeneration, as shown in the gray shades of the images. Level of Evidence II, Individual Study With Experimental Design. |
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Laser therapy in bone repair in rats: analysis of bone optical densityFractures, boneOsteotomyTechnology, radiologicFracture healingRats, wistarOBJECTIVE: To investigate, by digital radiology, the bone regeneration process in rats submitted to femoral osteotomy and treated with low power laser therapy.METHODS: Forty-five Wistar rats were subjected to transverse osteotomy of the right femur and divided randomly into three experimental groups (n = 15): animals not treated with laser therapy G (C), animals that received laser therapy with λ: 660nm G (660nm) and animals that received laser therapy with λ: 830nm G (830nm). Animals were sacrificed after 7, 14 and 21 days. The bone calluses were evaluated by digital X-ray at 65 kVp, 7mA and 0.032 s exposures.RESULTS: The values obtained were submitted to variance analysis (ANOVA) followed by the Tukey-Kramer test. The significance level adopted was 5%. The groups G (C), G (660nm), and G (830nm) at the 7th day showed a significant bone development, with p <0.0116; the groups G (C), G (660nm), and G (830nm) at the 14th day showed values of p <0.0001; at the 21stday,a higher degree of bone repair were observed in group G (830nm), and G (660nm), with p <0.0169.CONCLUSION: Based on the radiographic findings, G (830nm) showed more complete bone regeneration, as shown in the gray shades of the images. Level of Evidence II, Individual Study With Experimental Design.ATHA EDITORA2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522014000200071Acta Ortopédica Brasileira v.22 n.2 2014reponame:Acta Ortopédica Brasileira (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1590/1413-78522014220200438info:eu-repo/semantics/openAccessBarbosa,DanilloVillaverde,Antonio Guillermo Jose BalbinLoschiavoArisawa,Emilia ÂngelaSouza,Renato Aparecido deeng2015-10-26T00:00:00Zoai:scielo:S1413-78522014000200071Revistahttp://www.actaortopedica.com.br/https://old.scielo.br/oai/scielo-oai.php1atha@uol.com.br||actaortopedicabrasileira@uol.com.br1809-44061413-7852opendoar:2015-10-26T00:00Acta Ortopédica Brasileira (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false |
dc.title.none.fl_str_mv |
Laser therapy in bone repair in rats: analysis of bone optical density |
title |
Laser therapy in bone repair in rats: analysis of bone optical density |
spellingShingle |
Laser therapy in bone repair in rats: analysis of bone optical density Barbosa,Danillo Fractures, bone Osteotomy Technology, radiologic Fracture healing Rats, wistar |
title_short |
Laser therapy in bone repair in rats: analysis of bone optical density |
title_full |
Laser therapy in bone repair in rats: analysis of bone optical density |
title_fullStr |
Laser therapy in bone repair in rats: analysis of bone optical density |
title_full_unstemmed |
Laser therapy in bone repair in rats: analysis of bone optical density |
title_sort |
Laser therapy in bone repair in rats: analysis of bone optical density |
author |
Barbosa,Danillo |
author_facet |
Barbosa,Danillo Villaverde,Antonio Guillermo Jose Balbin LoschiavoArisawa,Emilia Ângela Souza,Renato Aparecido de |
author_role |
author |
author2 |
Villaverde,Antonio Guillermo Jose Balbin LoschiavoArisawa,Emilia Ângela Souza,Renato Aparecido de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Barbosa,Danillo Villaverde,Antonio Guillermo Jose Balbin LoschiavoArisawa,Emilia Ângela Souza,Renato Aparecido de |
dc.subject.por.fl_str_mv |
Fractures, bone Osteotomy Technology, radiologic Fracture healing Rats, wistar |
topic |
Fractures, bone Osteotomy Technology, radiologic Fracture healing Rats, wistar |
description |
OBJECTIVE: To investigate, by digital radiology, the bone regeneration process in rats submitted to femoral osteotomy and treated with low power laser therapy.METHODS: Forty-five Wistar rats were subjected to transverse osteotomy of the right femur and divided randomly into three experimental groups (n = 15): animals not treated with laser therapy G (C), animals that received laser therapy with λ: 660nm G (660nm) and animals that received laser therapy with λ: 830nm G (830nm). Animals were sacrificed after 7, 14 and 21 days. The bone calluses were evaluated by digital X-ray at 65 kVp, 7mA and 0.032 s exposures.RESULTS: The values obtained were submitted to variance analysis (ANOVA) followed by the Tukey-Kramer test. The significance level adopted was 5%. The groups G (C), G (660nm), and G (830nm) at the 7th day showed a significant bone development, with p <0.0116; the groups G (C), G (660nm), and G (830nm) at the 14th day showed values of p <0.0001; at the 21stday,a higher degree of bone repair were observed in group G (830nm), and G (660nm), with p <0.0169.CONCLUSION: Based on the radiographic findings, G (830nm) showed more complete bone regeneration, as shown in the gray shades of the images. Level of Evidence II, Individual Study With Experimental Design. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
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=S1413-78522014000200071 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522014000200071 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1413-78522014220200438 |
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.22 n.2 2014 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 |
_version_ |
1752122274767437824 |