Forty-five patients ASA I - II aged 21-45 years for elective knee arthroscopy were divided into 3 groups: Group B, BD and BF. Group B received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml saline. Group BD received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 ml dexmedetomidine (100 ug).~Group BF received Intra-articular injection of 20 ml bupivacaine 0.25%+ 1 fentanyl (50 ug). The time of first request of analgesia and analgesic effect by VAS during the first 24 hr. postoperatively are recorded.
The aim of this study is to evaluate analgesic effects Bupivacaine, Bupivacaine plus Dexmedetomidine and Bupivacaine plus Fentanyl in relieving pain after knee arthroscopic surgery.