A Multi-center, randomized, double-blind placebo-controlled trial of intravenous-ibuprofen (IV-ibuprofen) for treatment of pain in post-operative orthopedic adult patientspme

Abstract

Objective: To determine whether pre- and postoperative administration of intravenous ibuprofen (IV-ibuprofen) can significantly decrease pain and morphine use when compared with placebo in adult orthopedic surgical patients. Design: This was a multi-center, randomized, double-blind placebo-controlled trial. Setting: This study was completed at eight hospitals; six in the United States and two in South Africa. Patients. A total of 185 adult patients undergoing elective orthopedic surgery. Interventions: Patients were randomized to receive either 800mg IV-ibuprofen or placebo every 6 hours, with the first dose administered pre-operatively. Additionally, all patients had access to intravenous morphine for rescue. Outcome Measures: Efficacy of IV-ibuprofen was demonstrated by measuring the patient's self assessment of pain using a visual analog scale (VAS; assessed with movement and at rest) and a verbal response scale (VRS). Morphine consumption during the post-operative period was also assessed. Results: In the immediate post-operative period, there was a 25.8% reduction in mean area under the curve-VAS assessed with movement (AUC-VASM) in patients receiving IV-ibuprofen (P < 0.001); a 31.8% reduction in mean AUC-VAS assessed at rest (AUCVASR; P < 0.001) and a 20.2% reduction in mean VRS (P < 0.001) compared to those receiving placebo. Patients receiving IV-ibuprofen used 30.9% less morphine (P < 0.001) compared to those receiving placebo. Similar treatment emergent adverse events occurred in both study groups and there were no significant differences in the incidence of serious adverse events. Conclusion: Pre- and post-operative administration of IV-ibuprofen significantly reduced both pain and morphine use in orthopedic surgery patients in this prospective randomized placebo-controlled trial.