IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-11-2-40714 Original Research Paper Intravenous magnesium sulphate for postoperative analgesia in lower limb orthopaedic surgeries under spinal anesthesia: a randomized, double-blind trial Abhishek Ghai Dr. Dr S.P. Chittora Dr. February 2022 11 2 01 02