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BACKGROUND: Telemedicine refers to various modalities for remote care, including telephone calls, imaging review, and real-time video teleconferencing visits. Although it has not been widely used in outpatient neurosurgery settings, the COVID-19 (coronavirus disease 2019) pandemic has necessitated a broader adoption. Our goal is to show the level of patient satisfaction with their telemedicine care. METHODS: We prospectively studied consecutive telemedicine patients who scheduled outpatient neurosurgery visits from May 15 to June 8, 2020. Patients were seen by the surgeon via real-time video conferencing using Google Meet, and then completed a telemedicine satisfaction survey. Our primary outcome was telemedicine satisfaction scores. We compared satisfaction scores between new and established patients and between patients within and outside of a 15-mile radius of the nearest clinic location. Sensitivity analyses were performed to account for the nonrespondents. Descriptive and univariate analyses were performed. A P value of

BACKGROUND CONTEXT Postoperative pain control following posterior lumbar fusion continues to be challenging and often requires high doses of opioids for pain relief. The use of ketorolac in spinal fusion is limited due to the risk of pseudarthrosis. However, recent literature suggests it may not affect fusion rates with short-term use and low doses. PURPOSE We sought to demonstrate non-inferiority regarding fusion rates in patients who received ketorolac after undergoing minimally invasive (MIS) posterior lumbar fusions. Additionally, we sought to demonstrate ketorolac's opioid-sparing effect on analgesia in the immediate postoperative period. STUDY DESIGN/SETTING This is a prospective, randomized, double-blinded, placebo-controlled trial. We are reporting our interim analysis. PATIENT SAMPLE Adults with degenerative spinal conditions eligible to undergo a 1- to 3-level minimally invasive lumbar spinal fusion. OUTCOME MEASURES Six-month and 1-year radiographic fusion as determined by Suk criteria, postoperative opioid consumption as measured by intravenous milligram morphine equivalent (MME), length of stay (LOS), and drug-related complications. Self-reported and functional measures include validated visual analog scale (VAS), short-form 12 (SF-12), and Oswestry Disability Index (ODI). METHODS A double-blinded, randomized placebo-controlled, non-inferiority trial of patients undergoing 1- to 3-level minimally invasive (MIS) transforaminal lumbar interbody fusion (TLIF) was performed. Patients were randomized to receive a 48-hour scheduled treatment of either intravenous ketorolac (15mg every 6 hours) or saline in addition to a standardized pain regimen. The primary outcome was fusion. Secondary outcomes included 48-hour and total postoperative opioid use demonstrated as MME, pain scores, LOS, and quality-of-life (QoL) outcomes. Univariate and multivariate analyses were performed. The present study provides results from a planned interim analysis. RESULTS Two hundred and forty-six patients were analyzed per protocol. Patient characteristics were comparable between the groups. There was no significant difference in 1-year fusion rates between the two treatments (p=.53). The difference in proportion for solid fusion between the ketorolac and placebo groups did not reach inferiority (.072, 95% CI, -.07-.21). There was a significant reduction in total/48-hour mean opioid consumption (p CONCLUSION Short-term use of low-dose ketorolac in patients who have undergone MIS lumbar fusion demonstrated favorable results suggesting non-inferior fusion rates. Ketorolac safely demonstrated a significant reduction in postoperative opioid use and LOS while maintaining equivalent postoperative pain control. FDA DEVICE/DRUG STATUS Not applicable.