Analgesic efficacy of anterior iliopsoas muscle space block combined with local infiltration analgesia after total hip arthroplasty: A prospective, double-blind, placebo-controlled study
Authors' conclusion
Compared to treatment with LIA alone, ultrasound-guided AIMSB combined with LIA can provide better postoperative pain relief, decrease opioid consumption, promote motor sparing, and enhance the recovery of THA patients.
Study context
- Population
- Patients undergoing primary total hip arthroplasty (THA) via a posterolateral approach under GAincluded in final analysis
- Participants
- 80 patients
- Comparison
- Ultrasound-guided anterior iliopsoas muscle space block (AIMSB) + local infiltration analgesia (LIA) vs sham AIMSB + LIA
- AIMSBn = 40
- Shamn = 40reference
- Primary endpoint
- Cumulative morphine consumption (mg)
- Follow-up
- 24 h after surgery
Methodological detailsprospective, double-blind, placebo-controlled, March 22, 2022 to June 1, 2022
- Prospective
- Double-blind
- Placebo-controlled
- March 22, 2022 to June 1, 2022
Primary result
As reported in the abstract
- Significantly less morphine consumption in AIMSB vs Sham within the first 24 h
Secondary outcomes
Morphine consumption during hospitalization; intraoperative opioids
- Significantly less in AIMSB vs Sham
Visual analog scale (VAS) pain scores at rest or during motion · within 24 h after surgery
- Significantly lower in AIMSB
Recovery
- AIMSB recovered more quickly than Sham
Quadriceps strength
- No significant difference between groups
Safety
Postoperative complications
- No significant difference between groups
Original publication
Analgesic efficacy of anterior iliopsoas muscle space block combined with local infiltration analgesia after total hip arthroplasty: A prospective, double-blind, placebo-controlled study. Anaesth Crit Care Pain Med. Published 26 July 2023. doi:10.
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