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Clinical Trial Summary

Opioid overuse is a widespread public health crisis in the United States with increasing rates of addiction and overdose deaths from prescription opioids. Reducing the need for opiate analgesics in the post-operative setting has become a high priority in minimizing long-term opioid use in surgical patients. This study will serve to demonstrate the efficacy of the addition of regional analgesic techniques in reducing post-operative opioid requirements in patients undergoing common lumbar spinal surgical procedures.


Clinical Trial Description

Opioid abuse and misuse remain a public health crisis in the United States, notably in patients with chronic pain from degenerative spine disease. Perioperative pain management for patients undergoing spinal surgery remains largely reliant on opioid medications, with several known adverse effects including, but not limited to delirium, postoperative urinary retention (POUR), constipation and nausea. These side effects contribute to increased hospital length of stay (LOS) with increased incidence of overall in-hospital complications, perioperative costs, and increased rates of opioid habituation and addiction. Dependence on prescription opioids has been associated with wide-ranging social and economic consequences including increased opioid overdose resulting in death, growing opioid-related incarcerations, and spiraling opioid-related healthcare cost from treatment of addiction, opioid-related mental health issues, and debilitating chronic pain. Long-term requirements for opioid medications may be associated with the use of higher doses of opioids in the perioperative period for patients undergoing invasive surgery for spinal degenerative conditions. Studies have demonstrated that patients who consume fewer opioids for 30 days after surgery are less likely to progress to become chronic opioid users. Regional analgesic techniques have shown promise in decreasing post-operative pain and opioid requirements in thoracic and abdominal surgery but difficulties with post-operative neurological assessments have limited their use in spinal surgery. Inter-fascial plane blocks, however, have emerged as a safe and potentially useful regional analgesic technique to mitigate the pain-inducing effects of posterior spine surgery. Erector Spinae Plane Blocks (ESPBs), specifically, involve ultra-sound guided injection of local anesthetic (LA) posteriorly beneath the erector spinae muscles resulting in longitudinal and ventrolateral spread of the anesthetic into the paravertebral space where the ventral and dorsal rami of the spinal nerves are located thereby inducing a multi-level analgesic effect. Depending upon the LA used, this effect may last for 4 to 36 hours. The proposed study will examine the efficacy of preoperative ESPBs in reducing post-operative opioid utilization and its associated complications specifically after minimally invasive (MIS) lumbar spine surgery including both decompressive and instrumented fusion procedures. The guiding principle of MIS spine surgery is reduction of iatrogenic injury by utilizing muscle dilating approaches and tubular retractors rather than conventional open, subperiosteal muscle stripping techniques. The latter typically results in muscle denervation and devascularization as well as postoperative muscle atrophy and dead space creation that increase postoperative pain, muscle dysfunction, prolonged recovery times and complications. Since MIS spinal surgical procedures preserve normal paraspinal musculature compared to open surgery, the magnitude of effect of ESPBs may actually be more pronounced in this population. The investigators hypothesize that by conducting this investigation within the rigor of a double-blinded, randomized placebo-controlled clinical trial, the results will definitively demonstrate that the addition of regional analgesia in the form of ESPB during MIS lumbar spine surgery will 1) reduce post-operative opioid consumption and 2) reduce opioid-related complications and hospital LOS but 3) have no adverse effects on postoperative pain control. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05029726
Study type Interventional
Source Rush University Medical Center
Contact Bart Jacher
Phone (888) 352-7874
Email [email protected]
Status Not yet recruiting
Phase Phase 4
Start date September 2021
Completion date January 2023

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