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Anesth Essays Res. 2019 Apr-Jun;13(2):225-228. doi: 10.4103/aer.AER_33_19.

Efficacy of Intra-articular Dexmedetomidine versus Buprenorphine for Postoperative Analgesia following Knee Arthroscopy: A Comparative Study.

Author information

1
Department of Orthopaedics, IMS and SUM Hospital, Bhubaneswar, Odisha, India.
2
Department of Anaesthesiology and Critical Care, IMS and SUM Hospital, Bhubaneswar, Odisha, India.

Abstract

Background:

Arthroscopic knee surgery is most commonly performed minimally invasive surgical procedure in orthopaedics. Postoperative pain relief is must for early mobilisation that reduces patient's morbidity and improves postoperative recovery.

Aims and Objectives:

We sought to compare analgesic efficacy of intraarticular buprenorphine with dexmedetomidine following arthroscopic surgery of knee.

Settings and Design:

A prospective , randomized controlled double blinded study was conducted involving 60 patients undergoing arthroscopic knee surgery.

Materials and Methods:

Patients were allocated into group B (n = 30) and group D (n = 30) receiving 100 μg of intraarticular buprenorphine and 100 μg of intraarticular dexmedetomidine respectively. Parameters observed were the time to first rescue analgesia , the number of patients requiring rescue analgesia with in next 24 hours, Visual analogue scale (VAS) at rest and on mobilization at 1st, 2nd, 4th, 8th, 12th and 24th hour.

Statistical Analysis:

Quantitative data were analyzed by unpaired student's t test and categorical data by Fisher's exact test. A P < 0.05 was considered to be significant. Statistical analysis was done using Statistical Package for the Social Sciences (SPSS 19.0, SPSS Inc., Chicago, IL, USA).

Results:

Time to first rescue analgesia was significantly longer in patients receiving in group B. VAS scores at rest were comparable between the groups at 1st, 2nd, 4th and 8th hour but significantly low with intraarticular buprenorphine than intraarticular dexmedetomidine at 12th and 24th hour. VAS scores on ambulation were comparable at 1st, 2nd and 4th hour but significantly higher in dexmedetomidine group as compared to buprenorphine at 8th, 12th and 24th hour.

Conclusion:

Intraarticular buprenorphine 100 μg provides longer duration of analgesia with decreased postoperative rescue analgesic requirement as compared to 100 μg intraarticular dexmedetomidine.

KEYWORDS:

Buprenorphine; dexmedetomidine; intra-articular; postoperative analgesia

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