| Autor: |
Sharbo Martins Casagrande, Maria de Lourdes Pessole Biondo-Simões, Lucas Freitas Berti, Rogério Ribeiro Robes, Rachel Biondo-Simões, Thaísa Sami Nakadomari, Lucélio Henning Junior |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Acta Cirúrgica Brasileira, Vol 35, Iss 11 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
0102-8650 |
| DOI: |
10.1590/acb351103 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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