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Local Infiltration Analgesia Versus Intrathecal Morphine for Postoperative Pain Management After Total Knee Arthroplasty: A Randomized Controlled Trial
University Hospital, Örebro.
University Hospital, Örebro.
University Hospital, Örebro.
University Hospital, Örebro.
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2011 (English)In: Anesthesia and Analgesia, ISSN 0003-2999, E-ISSN 1526-7598, Vol. 113, no 4, 926-933 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Local infiltration analgesia (LIA)-using a combination of local anesthetics, nonsteroidal anti-inflammatory drugs, and epinephrine, injected periarticularly during surgery-has become popular in postoperative pain management after total knee arthroplasty (TKA). We compared intrathecal morphine with LIA after TKA. less thanbrgreater than less thanbrgreater thanMETHODS: In this double-blind study, 50 patients scheduled to undergo TKA under spinal anesthesia were randomized into 2 groups: group M, 0.1 mg morphine was injected intrathecally together with the spinal anesthetic and in group L, LIA using ropivacaine, ketorolac, and epinephrine was infiltrated in the knee during the operation, and 2 bolus injections of the same mixture were given via an intraarticular catheter postoperatively. Postoperative pain, rescue analgesic requirements, mobilization, and home readiness were recorded. Patient-assessed health quality was recorded using the Oxford Knee Score and EQ-5D during 3 months follow-up. The primary endpoint was IV morphine consumption the first 48 postoperative hours. less thanbrgreater than less thanbrgreater thanRESULTS: Mean morphine consumption was significantly lower in group L than in group M during the first 48 postoperative hours: 26 +/- 15 vs 54 +/- 29 mg, i.e., a mean difference for each 24-hour period of 14.2 (95% confidence interval [CI] 7.6 to 20.9) mg. Pain scores at rest and on movement were lower during the first 48 hours in group L than in group M (P andlt; 0.001). Pain score was also lower when walking in group L than in group M at 24 hours and 48 hours postoperatively (P andlt; 0.001). In group L, more patients were able to climb stairs at 24 hours: 50% (11 of 22) versus 4% (1 of 23), i.e., a difference of 46% (95% CI 23.5 to 68.5) and at 48 hours: 70% (16 of 23) versus 22% (5 of 23), i.e., a difference of 48% (95% CI 23 to 73). Median (range) time to fulfillment of discharge criteria was shorter in group L than in group M, 51 (24-166) hours versus 72 (51-170) hours. The difference was 23 (95% CI 18 to 42) hours (P = 0.001). Length of hospital stay was also shorter in group L than in group M: median (range) 3 (2-17) versus 4 (2-14) days (P = 0.029). Patient satisfaction was greater in group L than in group M (P = 0.001), but no differences were found in knee function, side effects, or in patient-related outcomes, Oxford Knee score, or EQ-5D. less thanbrgreater than less thanbrgreater thanCONCLUSIONS: LIA technique provided better postoperative analgesia and earlier mobilization, resulting in shorter hospital stay, than did intrathecal morphine after TKA.

Place, publisher, year, edition, pages
Lippincott, Williams and Wilkins , 2011. Vol. 113, no 4, 926-933 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-71780DOI: 10.1213/ANE.0b013e3182288debISI: 000295215100036OAI: oai:DiVA.org:liu-71780DiVA: diva2:453946
Note
Funding Agencies|Research Committee, Orebro University Hospital||Available from: 2011-11-04 Created: 2011-11-04 Last updated: 2017-12-08

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Gupta, Anil

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AnesthesiologyFaculty of Health SciencesDepartment of Anaesthesiology and Surgery UHL
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