Document Classification

Section Type: METHODS

Text: Thirty-six young male patients undergoing knee arthroscopy were randomly allocated into 3 groups of 12 patients each : epidural fentanyl (EF, epidural administration of 17 mL of 2 % lidocaine plus 100 microg fentanyl and followed by intravenous (IV) injection of 2 mL of normal saline) ; IV fentanyl (IF, epidural administration of 17 mL of 2 % lidocaine plus 2 mL of normal saline and followed by IV injection of 100 microg of fentanyl) ; and control (C, epidural administration of 17 mL of 2 % lidocaine plus 2 mL of normal saline and followed by IV injection of 2 mL of normal saline).