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Postop Opioid Consumption
Data are expressed as mean ± SD. Group S: BPB with 0.2% ropivacaine 20 ml + normal saline 2 ml. Group M: BPB with 0.2% ropivacaine 20 ml + MgSO4 200 mg. There were no significant differences between the two groups. BPB: brachial plexus block.
