| Full text | |
| Author(s): |
Marcolino, Alexandre Marcio
[1]
;
Barbosa, Rafael Inacio
[1]
;
Siqueira das Neves, Lais Mara
[1]
;
Vinas, Thomas Selvaggio
[1]
;
de Barros Duarte, Danilo Teixeira
[1]
;
Mazzer, Nilton
[1]
;
Registro Fonseca, Marisa de Cassia
[1]
Total Authors: 7
|
| Affiliation: | [1] USP, Fac Med Ribeirao Preto, Dept Biomech Med & Rehabil Locomotor Apparat, BR-14049900 Ribeirao Preto, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Acta Ortopédica Brasileira; v. 18, n. 4, p. 207-211, 2010. |
| Web of Science Citations: | 9 |
| Abstract | |
OBJECTIVE: This study aimed to evaluate the effect of low-intensity laser on functional improvement of the walking of rats after sciatic nerve axonotmesis. METHODS: We used 18 rats divided randomly in two groups: control (Sham) and irradiated with an energy density of 40J/cm² for 21 consecutive days, using 830nm laser (AsGaAl). The animals were subjected to right sciatic nerve crushing by a portable device and assessed by the "Sciatic Functional Index" (SFI) at an acrylic platform through video recorded by a digital camera. The footprints were collected preoperatively, and on the 7th, 14th and 21st postoperative days. RESULTS: The results of the SFI were significant when comparing the groups on the 7th and 14th postoperative day (p<0.05). On the 21st postoperative day there was no difference between groups. There were intra-group differences detected in each evaluated week (p<0.01). The irradiated animals showed improvement in motion pattern, shown by the SFI values in the initial periods, but after 3 weeks, there was a similar recovery. CONCLUSION: The low-intensity laser has shown to be effective in accelerating regeneration of the sciatic nerve of rats after crushing. (AU) | |