ORIGINAL ARTICLE
Year : 2014  |  Volume : 8  |  Issue : 2  |  Page : 233-237

Pain relief after Arthroscopic Knee Surgery: A comparison of intra-articular ropivacaine, fentanyl, and dexmedetomidine: A prospective, double-blinded, randomized controlled study


1 Department of Anaesthesiology, NRS Medical College, Kolkata, West Bengal, India
2 Department of College of Medicine and Sagore Dutta Hospital, Kolkata, West Bengal, India
3 Department of Orthopedics, R.G. Kar Medical College, Kolkata, West Bengal, India
4 Department of R.M.O cum CT, B.I.N, Kolkata, West Bengal, India

Correspondence Address:
Anjan Das
174, Gorakshabashi Road, Royal Plaza Apartment (4th Floor, Flat No-1), Nagerbazar, Kolkata - 28, West Bengal
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1658-354X.130727

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Background: Postoperative pain is very common distressing symptom after any surgical procedure. Different drugs in different routes have been used for controlling post-arthroscopic pain. No one proved to be ideal. We have compared the analgesic effect of ropivacaine, fentanyl, and dexmedetomidine when administered through the intra-articular route in arthroscopic knee surgery. Materials and Methods: From March 2008 to July 2010, 99 patients undergoing arthroscopic knee surgery were randomly assigned into three groups (A,B,C) in a prospective double-blinded fashion. Group A received 10 ml of 0.75% ropivacaine, where Group B received 50 μg fentanyl, and Group C received 100 μg of dexmedetomidine through the intra-articular route at the end of procedure. Pain assessed using visual analog scale and diclofenac sodium given as rescue analgesia when VAS >4. Time of first analgesia request and total rescue analgesic used in 24 hours were calculated. Results: Demographic profiles are quite comparable among the groups. Time for requirement of first postoperative rescue analgesia in Group A was 380.61 ± 22.973 min, in Group B was 326.82 ± 17.131 min and in Group C was 244.09 ± 20.096 minutes. Total rescue analgesia requirement was less in Group A (1.394 ± 0.496) compared to Group B (1.758 ± 0.435) and Group C (2.546 ± 0.546). Group A had higher mean VAS score at 6 th and 24 th postoperative hours. No side effects found among the groups. Conclusion: Therefore, it suggests that intra-articular ropivacaine gives better postoperative pain relief, with increased time of first analgesic request and decreased need of total postoperative analgesia compared to fentanyl and dexmedetomidine.


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