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Effects of dexamethasone on local infiltration analgesia in total knee arthroplasty: a randomized controlled trial.
MedLine Citation:
PMID:  23306715     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: Intraoperative local infiltration analgesia has gained increasing popularity in joint replacement surgery. Because there is considerable variation among drug combinations, analgesic effects of each drug are not well understood. The purpose of this study was to clarify the efficacy of the addition of steroid to local anaesthetics in local infiltration analgesia during total knee arthroplasty. METHODS: Forty patients were randomly allocated to the steroid or control group. Patients in the steroid group received peri-articular injection of ropivacaine, dexamethasone and isepamicin, while dexamethasone was omitted from the analgesic mixture in the control group. Primary outcome was pain severity at rest using 100 mm visual analogue scale. RESULTS: Pain severity in the steroid group was lower than control group and there were significant differences between groups at post-operative day 1 and 3. Reduction in post-operative pain was associated with a decrease in serum C-reactive protein and interleukin 6 in drainage fluid. The number of patients who were able to perform straight leg raise within post-operative day 2 was 15/20 in the steroid group, which was significantly higher than the control group 5/20. CONCLUSION: Adding steroid to local anaesthetics in local infiltration analgesia reduced inflammation both locally and systemically, resulting in significant early pain relief and rapid recovery in total knee arthroplasty. LEVEL OF EVIDENCE: Randomized controlled trial, Level I.
Authors:
Masahiko Ikeuchi; Yuko Kamimoto; Masashi Izumi; Kayo Fukunaga; Koji Aso; Natsuki Sugimura; Masataka Yokoyama; Toshikazu Tani
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-11
Journal Detail:
Title:  Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA     Volume:  -     ISSN:  1433-7347     ISO Abbreviation:  Knee Surg Sports Traumatol Arthrosc     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9314730     Medline TA:  Knee Surg Sports Traumatol Arthrosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Orthopedic Surgery, Kochi University, 185-1 Oko-cho, Nankoku, Kochi, 783-8505, Japan, ikeuchim@kochi-u.ac.jp.
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