A Comparision of efficacy of Dexamethasone and methylprednisolone used as an adjuvant with 0.5%Ropivacaine under ultrasound guided supraclavicular brachial plexus block

this will be a double blinded randomized study conducted to evaluate and compare inj. dexamethasone 8mg  and inj. methylprednisolone 40 mg as an adjuvent with inj. Ropivacaine 0.5% 30 ml given  as USG guided supraclavicular block in patients undergoing various orthopaedic surgical procedure around elbow and forearm  with a primary objective to compare duration of analgesia and secondary objectives being onset and duration of sensory block, onset and duration of motor block, and adverse effect . Participants will be allocated in to group RD who will be receiving inj. dexamethasone and group RM who receiving inj. methylprednisolone  with local anaesthetic agent in doses as described earlier and will be monitored intraoperatively and post operatively at described interval and study parameters will be recorded  and data will be analysed using standard  qualitative and quantitative test . P value of less than 0.05 will be considered significant.