Superficial Cervical Plexus Block

This study aims to determine the minimum effective volume (MEV90) of local anesthetic required to achieve sensory block of the supraclavicular nerves when performing a single-shot ultrasound-guided interscalene brachial plexus block (ISB). These nerves provide sensation to the skin over the clavicle and shoulder and are often involved in surgeries such as shoulder arthroscopy and clavicle repair.

This study aims to evaluate and compare the efficacy and safety of ultrasound guided superficial cervical plexus block (SCPB) with either clavipectoral fascial plane block (CPB) or interscalene brachial plexus block (ISBP) as an anesthetic technique for clavicle surgeries.