Effectiveness of Retrolaminar Block in Lumbar Spine Fusion With Multimodal Analgesia
Effectiveness of Retrolaminar Block in Reducing Postoperative Opioid Consumption in Patients Undergoing Lumbar Spine Fusion With Multimodal Analgesia
Pontificia Universidad Catolica de Chile
44 participants
Jun 30, 2026
INTERVENTIONAL
Conditions
Summary
This randomized, blinded, controlled clinical trial aims to evaluate the effectiveness of ultrasound-guided retrolaminar block in reducing postoperative opioid consumption in patients undergoing lumbar spine fusion surgery under multimodal analgesia. The participants will: * Be randomly assigned in a 1:1 ratio to receive either a retrolaminar block with 0.25% bupivacaine plus epinephrine or a sham block (normal saline) prior to surgical incision. * Receive standardized multimodal analgesia. * Have follow-up by the Acute Pain Unit during the first 3 days, to assess opioid consumption (morphine) in 24 hours, pain intensity measured by Numeric Rating Scale, quality of recovery assessed by the QoR-15 questionnaire, intraoperative blood loss, and postoperative complications.
Eligibility
Plain Language Summary
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Interventions
Retrolaminar block with bupivacaine and epinephrine on both sides of the vertebral lamina, and subcutaneous injection in the area of the surgical incision.
Sham block in the retrolaminar area with saline solution on both sides of the vertebral lamina, and subcutaneous injection in the area of the surgical incision.
Locations(1)
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NCT07291388