Comparison of interscalene block versus shoulder anterior capsule block for postoperative pain management in rotator cuff surgery: a randomized controlled trial

Although SHAC block preserves shoulder motor function, it provides less effective analgesia and requires more opioids, which is associated with lower patient satisfaction. TRIAL REGISTRATION (CLINICALTRIALS.GOV): Number: NCT06827912 Date when the study was first posted on ClinicalTrials.gov: 02/10/2025 Date of enrollment of the first research participant: 02/20/2025.