Comparison of the effects of bupivacaine, lidocaine, and tramadol infiltration on wound healing in rats

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Background and objectives: The aim of this study was to investigate the effects of saline solution, bupivacaine, lidocaine and tramadol infiltration on wound healing in rats. Method: Thirty-two male Wistar Albino rats were randomly separated into four groups, receiving 3. mL saline solution in control group (Group C, n = 8), 3. mL of 2% lidocaine in lidocaine group (Group L, n = 8), 3. mL of 0.5% bupivacaine in bupivacaine group (Group B, n = 8), and 3. mL of 5% tramadol in tramadol group (Group T, n = 8). Breaking-strength measurements, collagen bundle counting, and histopathologic evaluation were evaluated in the tissue samples taken from the rats. Results: Comparing the control group with the groups where bupivacaine and lidocaine were used for wound infiltration, collagen production was lower, breaking-strength measurements showed reduced resistance while significantly high edema, vascularity, inflammation scores were found (p < 0.0125). Between the control and the tramadol group there were no significant differences in collagen production, breaking-strength measurements, and edema, vascularity, inflammation scores (p > 0.0125). Conclusion: In our study, we found bupivacaine and lidocaine reduced the collagen production, wound breaking strength, and caused significantly high scores for edema, vascularity, and inflammation when compared to the control group. There was no significant difference between the control and the tramadol group. Results of this experimental preliminary study on rats support the idea that tramadol can be used for wound infiltration anesthesia without adverse effect on the surgical healing process. These results need to be verified in humans. © 2012 Elsevier Editora Ltda.




Hanci, V., Hakimoĝlu, S., Özaçmak, H., Bektaş, S., Özaçmak, H. S., Özdamar, Ş. O., … Turan, I. Ö. (2012). Comparison of the effects of bupivacaine, lidocaine, and tramadol infiltration on wound healing in rats. Revista Brasileira de Anestesiologia, 62(6), 799–810.

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