Perioperative medicine & outcomes
Analgesic benefits of single-shot versus continuous adductor canal block for total knee arthroplasty: a systemic review and meta-analysis of randomized trials
Authors' conclusion
Our results suggest that continuous catheter-based ACB does not enhance or prolong the analgesic benefits when compared with single-shot ACB for TKA over the first 48 hours postoperatively.
Study context
- Population
- Adults undergoing total knee arthroplasty (TKA)
- Participants
- 1,185 adults · 11 RCTs
- Comparison
- Single-shot vs continuous adductor canal block (ACB)
- Outcome
- (1) AUC pain severity at rest and (2) cumulative opioid (oral morphine equivalent) consumption
- Follow-up
- First 48 hours postoperatively
Methodological detailsrandom effects (Hartung-Knapp-Sidik-Jonkman)
- Random effects (Hartung-Knapp-Sidik-Jonkman)
Pooled result
As reported in the abstract
up to 48 hours postoperatively
- No differences in rest pain severity (AUC) or cumulative opioid consumption
Further pooled results
Rest pain scores (recovery room, 12 and 24 hours), cumulative opioid consumption at 24 hours, functional recovery
- No differences observed
Safety
| Outcome | OR (95% CI) | P value | |
|---|---|---|---|
| Block-related complicationsFewer with single-shot ACB | 0.24 (0.14–0.41) | P = 0.002 | |
| 0.10.31310Odds ratio (log scale) |
Opioid-related side effects
- No differences observed
Original publication
Analgesic benefits of single-shot versus continuous adductor canal block for total knee arthroplasty: a systemic review and meta-analysis of randomized trials. Reg Anesth Pain Med. Published 8 November 2022. doi:10.
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