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High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture

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Date
2016
Author
Rampazo, Erika P. [UNIFESP]
Liebano, Richard E.
Pinfildi, Carlos Eduardo [UNIFESP]
Folha, Roberta A. C. [UNIFESP]
Ferreira, Lydia M. [UNIFESP]
Type
Artigo
ISSN
1413-3555
Is part of
Brazilian Journal Of Physical Therapy
DOI
10.1590/bjpt-rbf.2014.0167
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Abstract
Objective: To verify the efficacy of high voltage pulsed current in collagen realignment and synthesis and in angiogenesis after the partial rupturing of the Achilles tendon in rats. Method: Forty male Wistar rats were randomized into four groups of 10 animals each: sham, cathodic stimulation, anodic stimulation, and alternating stimulation. Their Achilles tendons were submitted to direct trauma by a free-falling metal bar. Then, the treatment was administered for six consecutive days after the injury. In the simulation group, the electrodes were positioned on the animal, but the device remained off for 30 minutes. The other groups used a frequency of 120 pps, sensory threshold, and the corresponding polarity. On the seventh day, the tendons were removed and sent for histological slide preparation for birefringence and Picrosirius Red analysis and for blood vessel quantification. Results: No significant difference was observed among the groups regarding collagen realignment (types I or III collagen) or quantity of blood vessels. Conclusion: High voltage pulsed current for six consecutive days was not effective in collagen realignment, synthesis, or angiogenesis after the partial rupturing of the Achilles tendon in rats.
Citation
Brazilian Journal Of Physical Therapy. Sao Carlos Sp, v. 20, n. 4, p. 312-319, 2016.
Keywords
electrical stimulation
tendinopathy
healing
physical agents
tissue repair
physical therapy
URI
https://repositorio.unifesp.br/handle/11600/57617
Collections
  • EPM - Artigos [17701]
  • ISS - Artigos [738]

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