Postoperative sore throat (POST) is a frequent complication of tracheal intubation, particularly after surgery in the prone position. We designed this study to validate the non-inferiority of magnesium sulphate against dexamethasone for prevention of POST after lumbar spinal surgery. | A randomized, double-blind, non-inferiority trial of magnesium sulphate versus dexamethasone for pre-vention of postoperative sore throat after lumbar spinal surgery in the prone position