Tensiometric evaluation of the effect of lowfrequency electric stimulation on healing Achilles tendons in rats
Acta cir. bras
;
35(11): e351103, 2020. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-1141936
ABSTRACT
Abstract Purpose:
To evaluate the effects of low-frequency electric stimulation on biomechanics following surgical treatment of the Achilles tendon in rats.Methods:
Forty-two rats were divided into two groups. One was given electric stimulation and the other was not. All were submitted to Achilles tenotomy and tenorrhaphy performed with a modified Kessler stitch. The experiment group underwent electric stimulation with 2 Hz, a nonpolarized current of 1 mA intensity for 14 days. The animals were euthanized at 2, 4 and 6 weeks for the biomechanical study.Results:
The work performed, that is, the tendon's capacity to absorb energy until rupture, was greater in the electrically stimulated group in the 2nd (p = 0.032) and in the 6th week (p = 0.010). The maximum tension, which is the capacity to support a load, was higher in the treated group in the 2nd (p = 0.030) and the 6th week (p = 024). These results indicate greater resistance of the electrically stimulated tendons. An analysis of the elastic module showed no differences.Conclusion:
Low-frequency electric stimulation increased the resistance of the tendons at 2 and 6 weeks of evolution in rats.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Tendão do Calcâneo
/
Tenotomia
Limite:
Animais
Idioma:
Inglês
Revista:
Acta cir. bras
Assunto da revista:
Cirurgia Geral
/
Procedimentos Cir£rgicos Operat¢rios
Ano de publicação:
2020
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
UFPR/BR
/
Universidade Federal do Paraná/BR
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