To Compare the Effect of Flexion and Extension on Unilaterality of Spinal Anaesthesia in Lateral Decubitus Position Using Low Dose Hyperbaric Bupivacaine

[...]this study was carried out to analyse the effect of flexion and extension on unilaterality of spinal anaesthesia in lateral decubitus position. Material and Methods After obtaining approval from Hospital Ethics Committee (IEC/GMC/2021/403, dated 25/01/2021), this study was conducted on 70 patients, ASA grade 1 and 2 patients, aged 20-50 years, of either sex, scheduled for elective unilateral lower limb surgeries below knee, lasting not more than 2 hrs. A sample size of 58 patients was calculated by assuming mean difference of 20 and standard deviation of 35 and 23 taking Type 1 error (alpha)=0.05 and Type 2 error(beta)=0.2 (power oftest). Results No significant difference in demographic characteristics were seen between groups E and F (Table 1).