Abstract

COMPARATIVE STUDY OF INTRATHECAL PLAIN 0.5 % AND 0.75% ROPIVACAINE FOR LOWER LIMB ORTHOPAEDIC SURGERIES

*Priyanka N. Rathi, Manish R. Wadhwani, Prakash R. Dhumal and Vikas Kurhekar

Abstract

Aim and objective: In this study we compared the quality of spinal anaesthesia with two different concentrations of plain ropivacaine. Methods: 100 ASA I and II patients scheduled for elective lower abdominal and lower limb surgeries under spinal anaesthesia were enrolled. They were divided into two groups, Group A received 3ml of 0.5% plain ropivacaine and group B received 3ml of 0.75% plain ropivacaine. Onset, maximum blockade, time for maximum blockade and total duration of sensory and motor blockade, total duration of surgery, total duration of analgesia and side effects were noted. Results: Onset of sensory and motor blockade was similar in both the groups, median upper level of analgesia obtained with 0.5% was T10 and with 0.75% was T8. The median duration of sensory blockade was 180 min in group A and 240 min in group B. Incidence of complete motor blockade was higher and median total duration longer in 0.75% group (180 min in group B and 120 min in group A). Hemodynamic changes were minimal in both groups. No side effects were found. Conclusion: We conclude that intrathecal plain ropivacaine 0.75% results in good quality of sensory and motor block than 0.5% for orthopedic surgeries.

Keywords: Ropivacaine, intrathecal, motor blockade, orthopaedic surgeries.