Comparison between infraspinatus-Teres minor (ITM) Interfascial block and superior trunk block in shoulder arthroscopy: A randomized non-inferiority trial
Primary resultResult — go to the resultMedian difference 0 95 % CI −1 to 0Authors' conclusion
For maximal postoperative pain control within 24 h after shoulder arthroscopy, the ITM block was noninferior to STB, with significantly reduced diaphragmatic paralysis rates.
Study context
- Population
- Patients aged 18 to 65 years scheduled for elective shoulder arthroscopic surgery
- Participants
- 100 patients
- Comparison
- Infraspinatus-teres minor interfascial block vs superior trunk block
- Primary endpoint
- Highest resting pain score
- Follow-up
- First 24 h postoperatively
Methodological detailsprospective, non-inferiority, single tertiary hospital
- Prospective
- Non-inferiority
- Single tertiary hospital
Primary result
As reported in the abstract
Median difference
0
95 % CI −1 to 0
P < 0.01
By group
Superior trunk block (STB)
3
range 2.0–4.0
ITM
3
range 2.8–4.3
ITM vs STB
median difference 0 (95 % CI −1 to 0); P < 0.01
Non-inferiority margin 1 as printed, not drawn
Safety
Hemidiaphragmatic paralysis
- Significantly reduced diaphragmatic paralysis rates with ITM
Original publication
Comparison between infraspinatus-Teres minor (ITM) Interfascial block and superior trunk block in shoulder arthroscopy: A randomized non-inferiority trial. J Clin Anesth. Published 24 December 2025. doi:10.
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