IV Lidocaine in Pediatric AIS

This study addresses the focus areas of Post-Operative Pain Management. We propose a randomized, triple-blind, placebo-controlled trial to investigate the efficacy of a systemic infusion of intravenous lidocaine as a non-opioid method of post-operative pain management following postoperative spinal fusion for adolescent idiopathic scoliosis (AIS). The outcomes assessed will be (1) the effect of intravenous lidocaine on post-operative opioid consumption, both in-hospital and at three-month follow-up, (2) the effect of intravenous lidocaine on the immunophenotype expressed following surgery, and (3) the effect of intravenous lidocaine on recovery from surgery as assessed by the Patient Reported Outcomes Measurement Information System-Computer Adaptive Tests for Pain Interference (PI) and Mobility (M) (PROMIS-CAT). Thus, we propose a study of a non-opioid method of pain control to minimize opioid consumption in-hospital and at three-months postoperatively, with primary outcomes measures that include morphine-equivalent opioid consumption and PROMIS-Mobility to assess recovery. In addition, we will test the ability of systemic lidocaine to attenuate the systemic inflammatory response to major spine surgery. The immunologic response to surgery has been associated with rehabilitation and recovery following total hip arthroplasty and this study will provide data to support further work.