Patients receiving 0.2 % ropivacaine alone requested far more incremental doses ( 23 doses [ 0-60 ] vs. 5 doses [ 0-25 ] ) ( p = 0.006 ) and needed far more analgesic solution ( 230 mL [ 140-282 ] vs. 204 [ 130-228 ] ) ( p = 0.003 ) than patients receiving the ropivacaine/fentanyl mixture .
