Histological evaluation of the effect of low-frequency electric stimulation on healing Achilles tendons in rats
Acta cir. bras
;
36(1): e360103, 2021. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-1152692
ABSTRACT
ABSTRACT Purpose:
Histologically evaluate the effects of low frequency electrical stimulation in the treatment of Achilles tendon injuries in rats.Methods:
Thirty-four rats underwent Achilles tendon tenotomy and tenorrhaphy. They were randomly allocated in two groups. Half of the sample constituted the experiment group, whose lesions were stimulated with 2 Hz, nonpolarized current and 1 mA, for 14 days. The other animals formed the control group. They were evaluated at 2, 4 and 6 weeks. The histological study was carried out, the collagen density and the wound maturity index were measured.Results:
The healing score was higher in the group stimulated at the 6th week (p = 0.018). The density collagen 1 was higher in the group treated at the three times (p = 0.004) and that collagen 3 was higher in the group treated at 6 weeks (p = 0.004). Together, collagen 1 and 3 were higher in the group stimulated at 4 and 6 weeks (p = 0.009, p = 0.004). The maturity index was higher in this group at the three moments (p = 0.017 p = 0.004 and p = 0.009).Conclusion:
Low frequency electric stimulation improved healing and increased the quantity of collagen.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Tendão do Calcâneo
/
Traumatismos dos Tendões
/
Tenotomia
Limite:
Animais
Idioma:
Inglês
Revista:
Acta cir. bras
Assunto da revista:
Cirurgia Geral
/
Procedimentos Cir£rgicos Operat¢rios
Ano de publicação:
2021
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Hospital Angelina Caron and Fellow Master degree/BR
/
Universidade Federal do Paraná/BR
/
Veterinary Hospital/BR
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