Analgesic efficacy of the ultrasound-guided pericapsular nerve group (PENG) block for ambulatory hip arthroscopy: a randomized controlled double-blind trial
Primary result · QoR-15 (range 0-150, higher = better recovery); 24-h opioid consumptionResult — go to the resultMean difference −4.2Authors' conclusion
When administered preoperatively, the PENG block provides only modest early perioperative benefits without improving overall postoperative analgesia or QoR in patients undergoing ambulatory hip arthroscopy.
Study context
- Population
- Patients undergoing ambulatory hip arthroscopy
- Participants
- 94 patients
- Comparison
- Ultrasound-guided PENG block vs sham injection
- PENGn = 47
- Controln = 47reference
- Primary endpoint
- Cumulative opioid consumption (oral morphine equivalent) and quality of recovery (QoR-15) scores
- Follow-up
- 24 hours postoperatively
Methodological detailsplacebo-controlled, double-blind
- Placebo-controlled
- Double-blind
Primary result
As reported in the abstract
QoR-15 (range 0-150, higher = better recovery); 24-h opioid consumption · 24 hours
Mean difference
−4.2
adjusted p=0.414
By group
PENG
96.8
mean · SD 20.9
Control
101.0
mean · SD 20.9
Secondary outcomes
| Outcome | Estimate | P value |
|---|---|---|
| Opioid consumption in PACUAdjusted analysis | mean difference −9.5 MME | P = 0.039 |
| PACU LOSAdjusted analysis | mean difference −20.5 min | P = 0.027 |
Pain scores at rest and on movement
- Decreased over time in both groups, no consistent differences in overall pain trajectories
Opioid consumption · 48 hours
- Similar between groups
Safety
Opioid-related adverse effects and block-related complications
- Similar between groups
Original publication
Analgesic efficacy of the ultrasound-guided pericapsular nerve group (PENG) block for ambulatory hip arthroscopy: a randomized controlled double-blind trial. Reg Anesth Pain Med. Published 27 March 2026. doi:10.
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