Effect of Intrathecal Dexmedetomidine and Fentanyl as Adjuvant to Hyperbaric Bupivacaine for Orthopaedic Lower Limb and Lower Abdominal Procedures: A Double Blind Control Study

Aims and Objectives: The aim of this study is to evaluate the effects of Dexmedetomidine and Fentanyl as intrathecal adjuvant to Bupivacaine on the onset and duration of sensory and motor block in spinal anaesthesiain orthopaedic lower limb and lower abdominal surgeries. Materials and Method: Ninety patients of ASA status I and II   posted for lower limb and lower abdominal surgery were randomly divided into three groups. Group D was administered Hyperbaric Bupivacaine 15mg + Dexmedetomidine 5µg in 0.5 ml normal saline,group F was administered Hyperbaric Bupivacaine 15mg + Fentanyl 25 µg in 0.5 ml normal saline and group C  were administered Hyperbaric Bupivacaine 15mg plus in 0.5 ml normal saline.Duration and quality of sensory and motor block were assessed. Results: Sensory and motor block in   group D patients were longer than group F and C patients. Conclusion: Intrathecaldexmedetomidine when added tobupivacaine heavy (0.5%)provide better and prolonged analgesia in comparison to fentanyl. Key word: Fentanyl, Orthopaedic, Bupivacaine,Intrathecal, Dexmedetomidine