• Dorna Kheirabadi, Mohammad Reza Safavi, Marzieh Taghvaei, Mohammad Reza Habibzadeh, and Azim Honarmand.
• Anesthesiology and Critical Care Research Center, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
• J Res Med Sci. 2020 Jan 1; 25: 9.

BackgroundLower extremity pain after orthopedic surgery is so frequent that has led to many treatment modalities. This study aims to compare the prophylactic effects of oral gabapentin, pregabalin, and celecoxib on reducing postsurgical pain of the lower extremity orthopedic surgery.Materials And MethodsIn a double-blind randomized controlled trial, 120 patients were randomly divided into four groups using block design randomization. 1 h before spinal anesthesia, the studied groups received 300 mg oral gabapentin; 75 mg oral pregabalin; 200 mg oral celecoxib; and starch as placebo. The severity of postoperative pain (using visual analog scale), mean arterial pressure, heart rate, opioid consumption dose, and drug side effects were recorded for six times (each 60 min up to two times and then every 6 h for the next four times). Chi-square, one-way analysis of variance (ANOVA), and ANOVA repeated measure tests were used for statistical analysis.ResultsSignificant reduction of pain severity was observed only at the first time measurement between pregabalin and placebo groups (P: 0.014). Patients in the pregabalin group required lower dose of opioid compared to placebo group during admission in surgical ward. There were no significant differences concerning pain reduction, opioid administration, and side effects between pregabalin, gabapentin, and celecoxib groups.ConclusionTaking 75 mg oral pregabalin before lower extremity orthopedic surgery can attenuate postoperative pain, especially during the 1st h postoperation as well as less opioid consumption and much more patients' satisfaction.Copyright: © 2020 Journal of Research in Medical Sciences.

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