Postoperative pain relief effect of a suprascapular nerve block before arthroscopic shoulder surgery

Park, Jae Kyun; Lee, Young Bok; Kim, Soon Yul

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Spinal Pain

Anesthesia and Pain Medicine 2012;7(1):8-11.
Published online January 31, 2012.

Postoperative pain relief effect of a suprascapular nerve block before arthroscopic shoulder surgery

Jae Kyun Park, Young Bok Lee, Soon Yul Kim

Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea. soonyul@yonsei.ac.kr

Abstract

BACKGROUND
Arthroscopic shoulder surgery results in severe postoperative pain in 45% of patients which requires a large amount of opioids for relief. We hypothesized that a suprascapular nerve block before arthroscopic shoulder surgery would improve the quality of postoperative pain relief thereby allowing patients to require significantly reduced amounts of opioids.
METHODS
Sixty patients were randomized from a elective arthroscopic shoulder surgery list either into a control group (group 1, n = 30) with only intravenous, patient-controlled analgesia (IV PCA) or an experimental group (group 2, n = 30) involving a suprascapular nerve block before arthroscopic shoulder surgery. The patients had an induction of general endotracheal anesthesia with or without suprascapular nerve block before operation. The IV PCA was connected to the patients 10 minutes after induction. Both groups were analyzed by chi square test and t-test.
RESULTS
The postoperative VAS scores for group 2 decreased more than those for group 1. In particular, the VAS scores for group 2 within 12 hours after the operation were significantly higher than those 12 hours postoperative, as compared to group 1.
CONCLUSIONS
Increased pain relief and less reliance on opioid can be expected through the use of a suprascapular nerve block prior to arthroscopic shoulder surgery.

Key Words: Arthroscopic shoulder surgery, Opioid, Suprascapular nerve block

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