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Pericapsular nerve group block in hip arthroplasty: A prospective randomized trial
Tarek Abdel Hay Mostafa1, Mona Blough El Mourad2, Naglaa Khalil Mohamed3
1Lecturer of Anesthesia, Surgical Intensive Care and Pain Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt.
Journal of Opioid Management
|August 30, 2023
Summary
The pericapsular nerve group (PENG) block effectively reduces pain after hip arthroplasty (HA) surgery. This ultrasound-guided technique provides longer-lasting analgesia and lowers opioid use with minimal side effects.
Area of Science:
- Anesthesiology
- Pain Management
- Orthopedic Surgery
Background:
- Hip arthroplasty (HA) surgery often involves significant postoperative pain.
- Effective pain management is crucial for patient recovery and satisfaction after HA.
- Current analgesic strategies may have limitations regarding efficacy and side effects.
Purpose of the Study:
- To evaluate the analgesic efficacy of the ultrasound-guided pericapsular nerve group (PENG) block in patients undergoing hip arthroplasty (HA).
- To compare the PENG block with a sham procedure in terms of pain scores, opioid consumption, and side effects.
Main Methods:
- A prospective, double-blinded, randomized study involving 50 patients undergoing unilateral HA.
- Patients received either a PENG block with bupivacaine or a sham block (normal saline).
- Outcomes included pain scores, time to first analgesic request, opioid consumption, and adverse events.
Main Results:
- Patients receiving the PENG block experienced significantly longer durations until the first analgesic request.
- The PENG block group showed lower perioperative pain scores and reduced intraoperative fentanyl and postoperative morphine consumption.
- No significant motor weakness was observed in the PENG block group, and adverse events were similar between groups.
Conclusions:
- The ultrasound-guided PENG block offers effective perioperative analgesia for hip arthroplasty.
- It provides prolonged pain relief with reduced opioid requirements and minimal motor or adverse effects.
- PENG block is a safe and effective analgesic option for HA surgery.

