Single Shot Liposomal Bupivicaine in Rotator Cuff Surgery

"The medication administered in the interscalene block is the intervention in this study. There are three different types of interscalene blocks that will be administered in order to compare the independent effectiveness of LB with the effectiveness of LB plus dexamethasone. Study participants will be randomized into one of three groups. The treatment groups are listed below:~Group 1 (Control): 30 ml of 0.5% bupivacaine and 0.4ml (4 mg) of dexamethasone Group 2: 15ml 0.5% bupivacaine and 10ml (133mg) of LB (Exparel) and 5.4ml normal saline Group 3: 5ml 0.5% bupivacaine and 10ml LB (Exparel) and 0.4ml (4 mg) dexamethasone and 5ml normal saline"

steroid that will be used in control as well as in group 3 to see if effect with liposomal bupivicaine is prolonged as has been shown with standard bupivicaine.