Comparison of ICB + SSNB vs. CAPB + PSNB for Shoulder Arthroscopy: A Randomized Trial

Abstract

This study aims to compare the efficacy and safety of Infraclavicular Brachial Plexus Block 
(ICB) combined with Suprascapular Nerve Block (SSNB) versus Coracoid Approach Brachial Plexus 
Block (CAPB) combined with Posterior Suprascapular Nerve Block (PSNB) in providing analgesia for 
shoulder arthroscopy. The primary outcomes include postoperative pain scores, hemidiaphragm 
paralysis incidence, opioid consumption, and complications. The study hypothesizes that ICB + SSNB 
will provide comparable analgesia to CAPB + PSNB while further reducing the risk of phrenic nerve 
involvement.