Comparing Iliopsoas Plane Block and Pericapsular Nerve Group Block for Pain Relief and Recovery After Hip Replacement Surgery

What this Trial Is About

Researchers are comparing two regional anesthesia techniques, the Pericapsular Nerve Group PENG block and the Iliopsoas Plane Block IPB, in adults undergoing total hip arthroplasty THA via the posterior surgical approach. Both blocks have shown potential for managing postoperative pain and reducing opioid use, but they have not been directly compared in this specific surgery. The goal is to see if IPB is as effective as PENG for pain control and recovery after hip replacement. In this randomized, double-blind study, 118 adult patients will be assigned to receive either the PENG block with 14 ml of ropivacaine 3.75 mgml or the IPB with 7 ml of ropivacaine 7.5 mgml. Both injections are given under ultrasound guidance 30 minutes before spinal anesthesia. After surgery, all patients will receive standard pain relief including paracetamol, etoricoxib, and morphine via a patient-controlled pump for 48 hours. Participants will be assessed for pain during movement at 6 hours after surgery as the primary outcome, using a 0 to 10 pain scale. Other measures include total morphine use, pain scores at rest and movement over 48 hours, walking tests, recovery quality questionnaires, side effects, patient satisfaction, and hospital stay length. Safety is monitored with ultrasound guidance minimizing risks. The study aims to inform anesthesia choices for better pain management and recovery after hip replacement surgery.

Iliopsoas (IPB) and Pericapsular Nerve Group (PENG) Blocks Comparison on Analgesia and Recovery After Total Hip Arthroplasty