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Published in: European Journal of Orthopaedic Surgery & Traumatology 4/2018

01-05-2018 | Original Article • KNEE - ARTHROPLASTY

Periarticular multimodal drug injection is better than single anesthetic drug in controlling pain after total knee arthroplasty

Authors: Nattapol Tammachote, Supakit Kanitnate, Sudsayam Manuwong, Phonthakorn Panichkul

Published in: European Journal of Orthopaedic Surgery & Traumatology | Issue 4/2018

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Abstract

Background

Postoperative pain is one of the issues that concern most patients after total knee arthroplasty (TKA). Periarticular multimodal drug injection and single anesthetic agent injection have been shown to effectively reduce postoperative pain. The purpose of this study was to compare the efficacy between multimodal drug injection and single anesthetic drug injection in controlling pain after TKA using a double-blinded randomized controlled trial.

Methods

Sixty-four osteoarthritic patients who underwent primary TKA were randomized into two groups. The multimodal drug injection group (group M) received levobupivacaine 150 mg, ketorolac 30 mg and morphine 5 mg, while the single anesthetic drug injection group (group S) received only levobupivacaine 150 mg. The primary outcomes were pain level (VAS), quantity of opioid consumption (mg) and time to request the first dose of analgesic drug (min).

Results

Multimodal drug injection provided lower pain level in the first 4 h after surgery (VAS rest: 30 vs 46, p = 0.02; VAS motion: 45 vs 66, p = 0.03). They consumed less morphine mostly in the first 8 h after surgery (5 vs 12 mg, p < 0.0001) and had approximately 2 h longer time to request the first dose of analgesic drug (254 vs 148 min, p = 0.02).

Conclusions

Multimodal drug injection decreases pain level, reduces morphine consumption in the early postoperative period and prolongs the analgesic effect compared to single anesthetic drug. One may consider using single anesthetic agent only in patients who have high risk of opioid or NSAIDs side effect.
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Metadata
Title
Periarticular multimodal drug injection is better than single anesthetic drug in controlling pain after total knee arthroplasty
Authors
Nattapol Tammachote
Supakit Kanitnate
Sudsayam Manuwong
Phonthakorn Panichkul
Publication date
01-05-2018
Publisher
Springer Paris
Published in
European Journal of Orthopaedic Surgery & Traumatology / Issue 4/2018
Print ISSN: 1633-8065
Electronic ISSN: 1432-1068
DOI
https://doi.org/10.1007/s00590-017-2110-x

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