IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-5-49579 Original Research Paper Comparison Between Epidural Bupivacaine And Dexamethasone Versus Epidural Bupivacaine And Fentanyl For Prolongation Of Post Operative Analgesia In Elective Lower Limb Orthopedics Surgery - An Observational Study Elumalai. M Dr. Dr. Vignesh Babu Dr. May 2023 12 5 01 02