Popliteal plexus block in total knee arthroplasty: a single-center randomized controlled double-blinded trial
Authors' conclusion
Adding a popliteal plexus block to a continuous femoral nerve block decreases 12-hour opioid utilization, but the effect size is small, calling into question its clinical relevance.
Study context
- Population
- Patients undergoing total knee arthroplasty
- Participants
- 66 patients
- Comparison
- Intervention vs Control
- Interventionn = 32
- Controln = 34reference
- Primary endpoint
- Postoperative morphine-equivalent consumption (mg)
- Follow-up
- 12 hours
Methodological detailsdouble-blinded, single-centre
- Double-blinded
- Single-centre
Primary result
As reported in the abstract
12-hour morphine-equivalent consumption
P = 0.04
Secondary outcomes
Lateroposterior knee pain
P = 0.03
| Outcome | Intervention | Control | P value |
|---|---|---|---|
| Average pain intensity in PACUTwo-sided Wilcoxon · median | 3.0 (IQR 3.0–5.0) | 2.0 (IQR 1.0–4.0) | P = 0.01 |
| Duration of popliteal plexus block procedure | median 5.0 (IQR 2.0–5.0) min | — not stated in the abstract |
— not stated in the abstract
Average pain intensity in PACU
- Lower in the intervention group (as stated; values printed in this order)
Benefits after 24 hours
- Benefits disappeared after 24 hours
Original publication
Popliteal plexus block in total knee arthroplasty: a single-center randomized controlled double-blinded trial. Reg Anesth Pain Med. Published 20 December 2024. doi:10.
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