This study will be a prospective randomized single-blinded clinical trial.~Patients undergoing shoulder arthroscopy who meet the inclusion criteria will be invited to participate in this study. A total of 120 patients will be recruited to participate.~Patients will be randomized via a 1:1 ratio to either the Interscalene block with the addition of buprenorphine, clonidine, dexamethasone group or Interscalene block alone group~The null hypothesis of this research study is that there will be no significant difference in morphine requirements between the Interscalene brachial plexus blocks with the addition of buprenorphine, dexamethasone, and clonidine and the same block without the adjuvant.
The goal of this clinical trial is to learn if there is a difference in morphine requirements in patients after upper extremity surgeries including shoulder arthroscopy. The main question it aims to answer is whether there is a difference between Interscalene brachial plexus blocks with the addition of buprenorphine, dexamethasone, and clonidine and the same block without the adjuvant.