A Randomized control Trail Comparing Post operative Analgesic Effect of Dexmeditomidine vs Nalbuphine as an Adjuvant with Ropivacaine in USG Guided Adductor Canal Block in Patients Undergoing Knee Surgeries

A total of 120 patients belonging to age group 18 to 65 years  , ASA class I and II scheduled for knee procedures will be prospectively studied. In this double-blinded randomized control trial,a total of 120 participants will be allocated into three groups -  Randomisation into 3 groups by computer generated randomisation  –Group D,Group N,GROUP R. GROUP D- Patients receive Inj. Ropivacaine 0.5% 20ml +Inj. Dexmedetomidine 50mcg/kg.GROUP N- Patients receive Inj. Ropivacaine 0.5% 20ml + Inj. Nalbuphine 10ml.Group R – Patients receive Inj.ropivacaine0.5% plain 20ml  +10ml of distilled water.Under ASP, spinal anesthesia given with 0.5% of bupivacaine(H) 3ml @L3-L4 space with Quincke 25g needle to the assigned group.Under ASP, Adductor canal block will be given to the assigned  group.Post operative pain will be assessed for the 1st 24 hours.Data collection will be done by observation and measurement of various parameters.