Objective The goal of this prospective randomized controlled experiment was comparing the analgesic efficacy, opioid needs, and adverse effect profiles of Paravertebral Block (PVB), Thoracolumbar Interfascial Plane Block (TLIP), and Retrolaminar Block (RLB) in patients undergoing lumbar disc herniation surgery. Methods 180 adults (ASA I-III) undergoing elective lumbar disc herniation surgery made up this single-center study. Among the exclusion criteria were coagulation problems, injection site infection, allergy to local anesthetics, and incapacity to provide informed consent. Patients were randomly assigned into four groups: Control (systemic analgesia only), PVB, TLIP, and RLB (45 patients per group). An expert anesthesiologist supervised the ultrasonography during each block. The Visual Analog Scale (VAS) was used to measure postoperative pain at 0, 1, 2, 6, 12, and 24 hours after surgery. This was the primary outcome. Motor block incidence, rescue morphine consumption, and Quality of Recovery-40 (QoR-40) scores at 24 hours were secondary objectives. Unfavorable incidents were noted. ANOVA and Kruskal-Wallis tests (p\<0.05) were used to examine the data.
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Visual Analogue Scale
Timeframe: 0 hour, 1 hour, 2 hour, 6 hour, 12 hour, 24 hour after surgery