- Residual motor blockade will be monitored and its wearing off time will be noted(when patient starts to lift legs against gravity) Post operative analgesic drugs will be given when patient's VAS score reaches > 7. (this will be taken as the time of wearing off analgesia) and the time of injection of first analgesic drug.(Inj Voveran 75mg i.m.)will be noted.VAS involves us of a 10cm line on a piece of white paper and it represents patients opinion of degree of pain.It will be explained to all patients preoperatively that one end of the line i.e '0' marks "no pain" at all, while other end i.e '10' represents "worst pain" she ever felt. Patient will rate the degree of pain by making a mark on the scale. Thus the pain score will be obtained by measuring the distance from the '0' end to the indicated mark.