Comparative study of 0.5% Levo-bupivacaine versus 0.5% Ropivacaine in combined sciatic and femoral nerve block in below knee orthopedic surgery under ultrasound guidance.

Regional anaesthesia are increasingly the preferred and best option for wide range of lower limb surgeries.It is said to provide surgical anaesthesia with better cardio- respiratory stability and to cause least interferance with the vital physiological function of the body.

Levo-bupivacaine has strongly emerged as a safer alternative for regional anaesthesia and is less cardiotoxic. Ropivacaine is documented to have comparable levels and duration of analgesia, lesser cardiotoxicity for the same duration of analgesia in comparison to Bupivacaine.

The purpose of the present study is to evaluate the efficacy of 0.5% Levo-bupivacaine and 0.5% Ropivacaine in combined sciatic and femoral nerve block for below knee orthopaedic surgery, by studying the onset and duration of sensory and motor blockade and the hemodynamic changes.