The median numbers ( interquartile ranges ) of analgesic doses were 12.0 ( 9.0-16 .8 ) for the lidocaine plus bupivacaine plus clonidine group , 12.0 ( 10.0-16 .5 ) for the lidocaine plus bupivacaine group , and 14.0 ( 9.0-15 ) for the placebo group .
