• Arch Orthop Trauma Surg · Jun 2024

    Total blood loss and early clinical outcomes under different tranexamic acid regimes in total knee arthroplasty.

    • Mona-Lisa Eckhof, Sebastian von Hertzberg-Bölch, Annette Eidmann, Martin Lüdemann, Maximilian Rudert, and Axel Jakuscheit.
    • Department of Orthopaedic Surgery, Koenig-Ludwig-Haus, University of Wuerzburg, Brettreichstr. 11, 97074, Wuerzburg, Germany. mona-lisa.eckhof@uniklinik-freiburg.de.
    • Arch Orthop Trauma Surg. 2024 Jun 1; 144 (6): 279528022795-2802.

    BackgroundMany different regimes of intravenous and local tranexamic acid (TXA) reduce total blood loss (TBL) in patients undergoing total knee arthroplasty (TKA). However, the most effective TXA regime in reducing blood loss might not be most beneficial for the patient. The aim of the present study was to investigate the effect of commonly used TXA regimes on blood loss and on early clinical outcomes.MethodsWe performed this monocentric retrospective study in patients undergoing primary TKA. Primary outcome was the estimated TBL. Secondary outcomes were the rates of adverse events (AE) as well as the range of motion (ROM), mobility and pain intensity during the first three physiotherapy sessions (PTS).ResultsWe analysed the data of 1250 TKAs. 5 different TXA regimes were applied. TBL (mean ± SE) was 953 ± 64 ml (2xiv), 999 ± 19 ml (2xiv + 1xlocal), 1075 ± 19 ml (1xiv + 1xlocal), 1191 ± 39 ml (1xlocal) and 1241 ± 48 ml (1xiv) (p < 0.01). In the linear regression model for TBL a lower number of TXA applications was a predictor for increased blood loss (p < 0.01). AE rates were lowest under 2xiv (0%) and 2xiv + 1xlocal (4.8%). Highest mobility and lowest pain intensity were observed under 1x iv and 2x iv. The largest portions of fully mobile patients on day three were observed under 1xiv (100%), 2xiv (100%) and 2xiv + 1local TXA (86.9%).ConclusionOur results suggest that multiple applications of TXA are more effective in decreasing blood loss than excessive dosing of TXA. Interestingly, local use of TXA might be associated with higher pain intensity and decreased mobility on the first days after surgery.© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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