• Thrombosis research · Jan 2008

    Review

    Has the incidence of deep vein thrombosis in patients undergoing total hip/knee arthroplasty changed over time? A systematic review of randomized controlled trials.

    • Katharine He Xing, Gareth Morrison, Wendy Lim, James Douketis, Adefowope Odueyungbo, and Mark Crowther.
    • Department of Medicine, McMaster University and St. Joseph's Healthcare, Hamilton, ON, Canada.
    • Thromb. Res. 2008 Jan 1;123(1):24-34.

    BackgroundThere is a perception in the orthopaedic and thromboembolism community that the incidence of deep vein thrombosis (DVT) has decreased in patients undergoing total knee arthroplasty (TKA) or total hip arthroplasty (THA).ObjectivesTo assess the incidence of DVT with warfarin thromboprophylaxis over time in patients undergoing elective TKA or THA.MethodsThe MEDLINE, EMBASE, and Cochrane Library databases were searched to October 2006, supplemented by a manual search of reference lists. Two reviewers independently extracted data on study characteristics, quality and the frequency of total, symptomatic and proximal DVT.ResultsFourteen studies (4,423 patients) were included. Total and proximal DVT after TKA declined over time (r=-0.75, p=0.031; r=-0.86, p=0.007 respectively). Total and proximal DVT after THA did not change. The risk of developing DVT after TKA was significantly higher than after THA (OR 1.85, 95% CI 1.6-2.14; p<0.0001). The risk of developing symptomatic DVT after THA was significantly higher than after TKA (OR 2.18, 95% CI 1.11-4.27; p=0.012).ConclusionsThe incidence of DVT in patients undergoing elective TKA appears to have declined in patients receiving warfarin thromboprophylaxis.

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