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Abstract
Objective: The aim of this study was to analyse the effectiveness of single dose of 20 mg/kg intravenoustranexamic acid (TXA), in reducing the blood loss in patients undergoing total knee arthroplasty (TKA).Material and method: 70 patients (65.5± 8.1 years old) that have undergone TKA were divided in twogroups. The 20 mg/kg IV TXA was given before the skin incision to one group (study group). On thecontrol group, TKA was performed without TXA. The demographic data, body mass index, amount ofbleeding and erythrocyte infusion during the operation, hemoglobin and hematocrit values (preoperative and 48th hour), the amount of drainage after the operation were compared between the groups.Results: The total amount of bleeding in the study group was 634.03± 182.88 ml and1166.42± 295.92 ml in the control group (p < 0.001). Perioperative bleeding was 252.01 ± 144.13 ml inthe study group and 431.33± 209.10 ml in the control group (p ¼ 0.018). The drainage after the operationwas 311.11± 141.64 ml at the 24th hour in the study group, 640.74 ± 279.43 ml at the 24th hour in thecontrol group (p< 0.001). The drainage after 24th hour was 97.96 ± 115.86 ml in the study group and112.96± 64.43 ml in the control group (p ¼ 0.584).Conclusion: A high, single dose of TXA intravenously given to the patient prior to the TKA signiŞcantlyreduces the bleeding during the operation and within the postoperative 24 h. There is no signiŞcantchange in the bleeding amount after the 24th hour following the operation.© 2016 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V. This isan open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)