" A STUDY TO COMPARE ULTRASOUND GUIDED THORACOLUMBAR INTERFASCIAL PLANE BLOCK (TLIP) AND ERECTOR SPINAE BLOCK (ESP) IN PATIENTS UNDERGOING SPINE SURGERY "- A PROSPECTIVE RANDOMIZED DOUBLE BLIND STUDY.

Title: A study to compare ultrasound-guided thoracolumbar interfascial plane block (TLIPB) and erector spinae plane block (ESPB) in patients undergoing spine surgery – A prospective randomized controlled double-blind study. Summary: This is a prospective, randomized, controlled, double-blind study designed to compare the analgesic efficacy of ultrasound-guided thoracolumbar interfascial plane block (TLIPB) and erector spinae plane block (ESPB) in patients undergoing elective thoracolumbar spine surgery. The primary objective is to evaluate and compare the duration of postoperative analgesia provided by both blocks. Secondary objectives include assessing postoperative pain scores and total rescue analgesic consumption within the first 24 hours. A total of 60 adult patients (ASA I–III), aged 18–70 years, will be randomized into two equal groups: one receiving TLIPB and the other ESPB using 0.25% bupivacaine (20 ml per side). Pain will be assessed using the Visual Analog Scale (VAS) at predefined intervals. The time to first rescue analgesic and total number of rescue doses will be recorded. Statistical analysis will include t-tests, Mann-Whitney U, and chi-square tests. This study aims to identify the more effective block technique for optimizing postoperative pain control in spine surgeries.