Ultrasound-Guided Lumbar Erector Spinae Plane Block for Pain Relief After Total Hip Replacement Surgery

What this Trial Is About

Researchers are evaluating the effectiveness of the lumbar Erector Spinae Plane ESP block, a relatively new ultrasound-guided nerve block technique, for managing postoperative pain after total hip arthroplasty THA. This prospective randomized study compares the pain relief from the lumbar ESP block against standard multimodal pain management in adults undergoing primary hip replacement surgery using a lateral approach under general anesthesia. Participants are randomly assigned to one of two groups the ESP block group receives the lumbar ESP block after anesthesia induction, where a local anesthetic 30 ml of 0.25% bupivacaine0.2% ropivacaine is administered under ultrasound guidance near the L4 vertebra. The control group receives multimodal analgesia without the nerve block, including intravenous paracetamol, oral paracetamol, diclofenac tablets, and patient-controlled morphine for rescue pain relief. After surgery, all patients spend 24 hours in a continuous care unit for monitoring. During the study, researchers will monitor and compare morphine consumption in the first 24 hours after surgery as the primary outcome. Secondary outcomes include intraoperative opioid use, pain levels at multiple time points up to 7 days, pain during sitting and walking, range of motion, and adverse effects related to opioids. The study aims to last until July 2026, with participants aged 18 to 85 years involved.

Lumbal Erector Spinae Plane Block for Pain Management After Total Hip Arthroplasty