Infiltration between the popliteal artery and the capsule of the knee ( IPACK ) vs. selective tibial nerve block for analgesia after anterior cruciate ligament reconstruction: a randomised controlled trial
Authors' conclusion
The IPACK and selective tibial nerve block provide comparable postoperative analgesia after anterior cruciate ligament reconstruction under general anaesthesia with a femoral triangle block, with similar impact on functional outcomes.
Study context
- Population
- Patients having anterior cruciate ligament reconstruction under general anaesthesia with a femoral triangle blockallocated randomly
- Participants
- Eighty patients
- Comparison
- IPACK provides superior analgesia to a selective tibial nerve block after anterior cruciate ligament reconstruction
- Primary endpoint
- Cumulative postoperative intravenous morphine consumption
- Follow-up
- 24 h
Primary result
As reported in the abstract
P = 0.073
Further findings
Secondary pain and functional outcomes
- No significant differences between groups
Safety
- No complications were reported
Original publication
Infiltration between the popliteal artery and the capsule of the knee ( IPACK ) vs. selective tibial nerve block for analgesia after anterior cruciate ligament reconstruction: a randomised controlled trial. Anaesthesia. Published 6 October 2026. doi:10.
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