Study to See How PENG Nerve Block Affects Pain After Hip Surgery Using Ropivacaine or Placebo

What this Trial Is About

This trial investigates the effect of the Pericapsular Nerve Group PENG block on reducing postoperative pain in patients undergoing peri-acetabular osteotomy PAO, a surgery for young adults with hip dysplasia. The study compares ropivacaine 5 mgml with a saline placebo to see if the PENG block can better manage pain after surgery. PAO often causes moderate to severe pain due to nerves in the anterior hip capsule being affected during the procedure. Participants are randomly assigned to receive either ropivacaine or saline administered via the PENG block during surgery. The PENG block targets nerves that supply the front part of the hip joint and aims to reduce pain without causing muscle weakness. This study is double-blinded and triple-masked, meaning neither patients, caregivers, nor researchers know who receives which treatment until after the study is complete. During the first 24 hours after surgery, patients will be monitored for pain levels, opioid use, and other recovery factors such as sleep quality, mobilization pain, nausea medication use, and hospital stay length. Researchers will assess pain at various time points including during movement and rest. The total observation includes follow-ups up to a week for opioid use and hospital discharge criteria. Participants will also be evaluated for any postoperative complications.

Investigating the Effect of Pericapsular Nerve Group (PENG) Block on Postoperative Pain After Peri-acetabular Osteotomy