A Cost Analysis of Opioid/Acetaminophen Therapy Versus a Multidrug, Opioid-Free Multimodal Postoperative Pain Control Regimen

Background: Opioids are often part of the post-operative pain regimen after orthopaedic surgery. Novel multimodal post-operative pain control regimens have been developed to decrease the amount of opioid usage due to their negative side effects including nausea, constipation, and addiction. The purpose of this study was to compare the cost of postoperative pain management treatment methods after orthopaedic surgery between opioid/acetaminophen therapy and an opioid-free, multidrug, multimodal pathway. Methods: This is a secondary analysis of data collected from 2 IRB approved prospective studies that evaluated pain control after elective orthopaedic surgery from a single institution. The first study analyzed the use of opioid medication after hallux valgus surgery and calculated the total cost of opioid pain medication consumed. The second study assessed the pain of patients after elective foot and ankle surgery utilizing a novel opioid-free multimodal pain pathway that included 5 medications. The postoperative prescription costs of these 2 pain management groups were totaled, analyzed, and compared. A paired t-test was used to compare the means of these 2 groups and to evaluate whether significant differences might exist between them. Results: We noted that the opioid group had an average cost of $8.92 (SD $5.74), while the opioid-free multimodal group had an average total cost of $25.60 (SD $10.49), P < .001. The average difference in cost between the 2 regimens was $16.68. Conclusion: There was a statistically significant difference between the costs of an opioid-free multimodal post-operative pain regimen when compared to an opioid/acetaminophen therapy, irrespective of public vs private insurance. This 17-dollar cost difference may or may not be clinically significant depending on the financial situation of the patient, but it may be important for the clinician to consider to provide appropriate individualized patient care after orthopaedic surgery.