Outpatient continuous adductor canal block (continuous adductor canal blocks (CACB)) for total knee arthroplasty: a double-blinded randomized placebo-controlled trial
Authors' conclusion
In our study, CACB significantly enhanced early postoperative recovery and analgesia following TKA in an outpatient or short-stay setting, compared with SACB
Study context
- Population
- Patients undergoing primary total knee arthroplasty (TKA) in an outpatient or short-stay setting
- Participants
- 60 patients
- Comparison
- Continuous vs single-injection adductor canal block
- CACBn = 30
- SACBn = 30reference
- Primary endpoint
- QoR-15 score
- Follow-up
- POD 2
Methodological detailsdouble-blind, placebo-controlled
- Double-blind
- Placebo-controlled
Primary result
As reported in the abstract
CACB
131.27
± 10.23
SACB
110.86
± 15.37
P < 0.001
Secondary outcomes
| Outcome | CACB | SACB | P value |
|---|---|---|---|
| QoR-15 score · POD 1 | 128.83 ± 12.36 | 109.00 ± 15.90 | P < 0.001 |
| QoR-15 score · POD 3 | 131.97 ± 13.94 | 111.18 ± 18.28 | P < 0.001 |
Opioid consumption and pain scores at rest and with movement · first three postoperative day (PODs)
- Lower opioid consumption and pain scores with CACB
Safety
- No major complications or signs of LAST observed
Original publication
Outpatient continuous adductor canal block (CACB) for total knee arthroplasty: a double-blinded randomized placebo-controlled trial. Reg Anesth Pain Med. Published 10 September 2025. doi:10.
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