Spine surgery pain showdown: which block works best?

This study looked at two different methods to control pain after spinal fusion surgery: injecting morphine near the spinal cord (intrathecal morphine) or numbing a muscle in the back (erector spinae plane block). Researchers followed 50 adults to see which method provided better pain relief right after surgery and reduced the need for extra painkillers in the first 24 hours. The goal is to find a safer, more effective way to manage pain after spine surgery.