Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats

Introduction Experimental studies conducted in young animals show that therapeutic ultrasound (TUS) has been successfully used to shorten the healing time of bone fractures. However, they were not found in the literature, studies comparing the effect of different intensities of UST in aged animals....

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Main Authors: Jeronimo Rafael Skau, Bruno Rodrigues, Felipe Oliveira Rosa, Rubens Correa Araujo, Renata Gabriel Fontinele, Romeu Rodrigues de Souza
Format: Article
Language:English
Published: Editora Champagnat
Series:Fisioterapia em Movimento
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-51502014000200173&lng=en&tlng=en
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author Jeronimo Rafael Skau
Bruno Rodrigues
Felipe Oliveira Rosa
Rubens Correa Araujo
Renata Gabriel Fontinele
Romeu Rodrigues de Souza
author_facet Jeronimo Rafael Skau
Bruno Rodrigues
Felipe Oliveira Rosa
Rubens Correa Araujo
Renata Gabriel Fontinele
Romeu Rodrigues de Souza
author_sort Jeronimo Rafael Skau
collection DOAJ
description Introduction Experimental studies conducted in young animals show that therapeutic ultrasound (TUS) has been successfully used to shorten the healing time of bone fractures. However, they were not found in the literature, studies comparing the effect of different intensities of UST in aged animals. Objective To test the efficacy of intensity 1.0 W/cm2 and of 0.5 W/cm2 in the consolidation of experimental fracture of the tibia from aged Wistar rats. Materials and methods Three groups of 15 month old rats were submitted to a midshaft osteotomy of the tibia and then, the hind member was immobilized with a metal splint and plaster of Paris, wrapping the knee and ankle joint. One group (L), received ultrasound at 0.5 W/cm2; the other group (I), were exposed to ultrasound at 1.0 W/cm2. One control group (C), did not receive the ultrasound. Fifteen animals (five from each group) were euthanatized at the end of the first week and fifteen (five from each group) at the end of the third week. The progress of the fracture healing was performed for each group by morphometric analysis of histological sections of the fracture region. Results and conclusion The results showed that fractures treated with ultrasound at 1.0 W/cm2 healed significantly faster than did the fractures treated with ultrasound at 0.5 W/cm2 and the control.
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spelling doaj.art-2775c310615a440da8b27f903659d2232022-12-22T02:58:40ZengEditora ChampagnatFisioterapia em Movimento1980-591827217317910.1590/0103-5150.027.002.AO02S0103-51502014000200173Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged ratsJeronimo Rafael SkauBruno RodriguesFelipe Oliveira RosaRubens Correa AraujoRenata Gabriel FontineleRomeu Rodrigues de SouzaIntroduction Experimental studies conducted in young animals show that therapeutic ultrasound (TUS) has been successfully used to shorten the healing time of bone fractures. However, they were not found in the literature, studies comparing the effect of different intensities of UST in aged animals. Objective To test the efficacy of intensity 1.0 W/cm2 and of 0.5 W/cm2 in the consolidation of experimental fracture of the tibia from aged Wistar rats. Materials and methods Three groups of 15 month old rats were submitted to a midshaft osteotomy of the tibia and then, the hind member was immobilized with a metal splint and plaster of Paris, wrapping the knee and ankle joint. One group (L), received ultrasound at 0.5 W/cm2; the other group (I), were exposed to ultrasound at 1.0 W/cm2. One control group (C), did not receive the ultrasound. Fifteen animals (five from each group) were euthanatized at the end of the first week and fifteen (five from each group) at the end of the third week. The progress of the fracture healing was performed for each group by morphometric analysis of histological sections of the fracture region. Results and conclusion The results showed that fractures treated with ultrasound at 1.0 W/cm2 healed significantly faster than did the fractures treated with ultrasound at 0.5 W/cm2 and the control.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-51502014000200173&lng=en&tlng=enUltrasomCicatrizaçãoFratura ósseaEnvelhecimento
spellingShingle Jeronimo Rafael Skau
Bruno Rodrigues
Felipe Oliveira Rosa
Rubens Correa Araujo
Renata Gabriel Fontinele
Romeu Rodrigues de Souza
Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
Fisioterapia em Movimento
Ultrasom
Cicatrização
Fratura óssea
Envelhecimento
title Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
title_full Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
title_fullStr Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
title_full_unstemmed Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
title_short Histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
title_sort histomorphometrical analysis on the effects of two therapeutic ultrasound intensities on fracture healing in aged rats
topic Ultrasom
Cicatrização
Fratura óssea
Envelhecimento
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-51502014000200173&lng=en&tlng=en
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