The Impact of Ketorolac Utilization on Outcomes for Lumbar Spine Surgery: A SystematicReview and Meta-Analysis of Randomized Controlled Trials

-OBJECTIVE: Ketorolac is one of the most potent nonsteroidal antiinflammatory drugs commonly used in spine surgery. The purpose of this study is to examine the impact of ketorolac utilization with or without other medications on a patient's postoperative course after lumbar surgery. - METHODS: A systematic review and meta-analysis of randomized controlled trials (RCTs) was performed using PubMed, CINAHL, MEDLINE, and Web of Science in July 2023. Inclusion criteria were RCTs that used ketorolac for lumbar surgery. - RESULTS: Thirteen RCTs were included (N = 997; mean age, 54.6 +/- 7.8 years; n = 535 in the ketorolac group) in this systematic review. There was no sig-ificant difference in the 24-hour and total postoperative morphine utilization (P = 0.185 and P = 0.109, respectively), 24-hour and final postoperative pain scores (0e10 scale) (P = 0.065 and P = 0.582, respectively), and length of stay at the hospital (P = 0.990) between patients in the ketorolac group and patients in the non-ketorolac group who underwent lumbar surgery. Overall, patients had similar rates of major complications (3.7% vs. 5.4%) and minor complications (42.1% vs. 51.7%) between groups after lumbar surgery. However, patients in the ketorolac group had a significantly lower rate of nausea and/or vomiting compared with the non-ketorolac group after lumbar surgery (21.6% vs. 37.1%, respectively; P = 0.018). - CONCLUSIONS: There is no significant difference in 24-hour and total postoperative morphine utilization, pain scores, or length of stay, with similar complication rates after lumbar surgery between patients receiving ketorolac and patients not receiving ketorolac via meta-analysis of RCTs.