Impact on analgesia, diaphragmatic function, and recovery between erector spinae plane block versus superior trunk block in arthroscopic shoulder surgery: a randomized controlled trial.
Ann MedMay 14, 2026 (epub)
Hsin-Yu Yang, Chung-Hsun Chang, Yueh-Hsun Chuang et al.
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In 30 seconds
This randomized controlled trial compared the erector spinae plane block and superior trunk block in 60 patients undergoing arthroscopic shoulder surgery. The superior trunk block provided significantly better early postoperative analgesia (dynamic VAS 0.1 vs. 5.7) and reduced morphine consumption (7.8 mg vs. 12.7 mg), while the erector spinae plane block better preserved diaphragmatic function.
Key findings
- Superior trunk block resulted in lower dynamic VAS at 1-h postoperatively (0.1 vs. 5.7; p < 0.001).
- 24-h morphine consumption was reduced with superior trunk block (7.8 mg vs. 12.7 mg; p = 0.038).
- Diaphragmatic excursion was better preserved in the erector spinae plane block group (8.37% vs. -20.09%; p < 0.001).
- QoR-15 scores were higher in the superior trunk block group at 24 h postoperatively (p = 0.047).
Why it matters
Understanding the trade-offs between different analgesic techniques is crucial for optimizing postoperative recovery and minimizing complications, particularly in patients with respiratory concerns.