• J Arthroplasty · Jul 2019

    Topical Tranexamic Acid in Revision Total Knee Arthroplasty Reduces Transfusion Rates and May Be Associated With Earlier Recovery.

    • Elina Huerfano, Manuel Huerfano, Kate A Shanaghan, and Gonzalez Della Valle Alejandro A Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY..
    • Department of Orthopaedic Surgery, Clínica de la Mujer, Bogotá, Colombia.
    • J Arthroplasty. 2019 Jul 1; 34 (7S): S249-S255.

    BackgroundThe use of tranexamic acid (TXA) has been proved to be effective in reducing blood loss and transfusion requirements after primary total knee arthroplasty (TKA). However, the evidence for its use in revision surgery is scant. We assessed the safety and efficacy of topical TXA in revision TKA.MethodsWe retrospectively compared 76 revision TKA patients who received topical TXA (3 g before tourniquet deflation) "study group" with a historic control group of 205 revision TKA patients in which TXA was not used. Each group was further stratified into subgroups according to the type of revision. All patients were followed for a minimum of 6 weeks. Blood loss, transfusion requirements, changes in hemoglobin-hematocrit levels, Knee Society Score, and complications were recorded.ResultsThe mean estimated blood loss, hemoglobin drop, and transfusion rate were significantly lower in the study group than in the control group (P = .008, P < .001, P < .001, respectively). Hidden blood loss was similar between the 2 groups (P = .12). Six weeks postoperatively, the improvement in the knee-specific Knee Society Score was significantly higher in the study group than in the control group (P < .001). No significant differences were found in thromboembolic complications between the 2 groups (P = .92). In the subgroup analysis, when both components (femur and tibia) were revised, the relative risk of transfusion was significantly lower with the use of TXA (relative risk 0.227, confidence interval 0.0593-0.860, P = .004).ConclusionTopical TXA in revision TKA is safe and effective in reducing blood loss and transfusions. This effect is enhanced when both components are revised. Additionally, the use of TXA may improve early outcomes.Copyright © 2018 Elsevier Inc. All rights reserved.

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