The onset time of sensory and motor sciatic nerve block was @ minutes ( @-@ minutes ) in group I and @ minutes ( @-@ minutes ) in group II ( P = @ ; WMWodds @ -LSB- @-@ @ -RSB- ) , while the duration of sensory block was @ minutes ( @-@ minutes ) in group I , and @ minutes ( @-@ minutes ) in group II respectively ( P = @ ; WMWodds @ -LSB- @-@ @ -RSB- ) .