IRCT20230204057318N1 IRCT 2023-02-19 Shahid Beheshti University of Medical Sciences Interscalene block with & without superficial cervical block Efficacy comparison between interscalene block with & without superficial cervical block for anesthesia in clavicle surgery 2023-03-21 anticipated 120 Complete https://irct.ir/trial/68554 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Creating a random sequence using a simple randomization method using 120 cards (60 cards for each group) that are placed inside opaque sealed envelopes and will be shuffled by the patients before choosing, Blinding description: The people responsible for creating a random sequence from the research team will not be responsible for examining the dependent variable. (The study will be blind.) Also, the data analyst will not know about the coding of the examined groups. 3 Clavicle fracture surgery. Intervention 1: Intervention group: After placing the patient in a suitable position, the interscalene block will be performed by experienced anesthesiologists, all of whom are trained in regional anesthesia. To perform each interscalene block, 20 ml of 1.5% lidocaine (Caspin Co.) along with 1 ml of 8.4% bicarbonate (Caspin Co.) and 1:200,000 epinephrine (Daroupash Co.), plus 4 ml of 0.5% bupivacaine (AstraZeneca Co.) will be used. An ultrasonic guide (S-Nerve Sonosite) with a linear probe of 6-15 MHz will be used to perform the block. Intervention 2: Control group: in the control group, in addition to performing the interscalene block method as described, superficial cervical plexus block with 10 ml of 1.5% lidocaine (Caspin Co.) along with 1 ml of 8.4% bicarbonate (Caspin Co.) and 1:200,000 epinephrine (Daroupakhsh Co.) plus 2 ml of 0.5% bupivacaine (AstraZeneca Co.) will be used. This block will be performed under ultrasonic guidance (S-Nerve Sonosite) with a 6-15 MHz linear probe. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no more information