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Knee Arthrocentesis in Adults
04:41

Knee Arthrocentesis in Adults

Published on: February 25, 2022

Anticoagulant use and its effect on bleeding and complications in total knee arthroplasty

Ingrid Radovanovic1, Joseph Queally, Syah Bahari

  • 1Department of Trauma & Orthopaedic Surgery, Adelaide and Meath National Hospital, Dublin, Ireland. ingasps@hotmail.com

Acta Orthopaedica Belgica
|June 16, 2012
PubMed

Insights

Warfarin use in total knee arthroplasty increased blood transfusions, blood loss, and hospital stays. Clopidogrel showed no significant difference compared to controls, suggesting warfarin may pose higher risks for this surgery.

Area of Science:

  • Orthopedic Surgery
  • Pharmacology
  • Transfusion Medicine

Background:

  • Limited research exists on long-term anticoagulant effects in total knee arthroplasty (TKA).
  • Understanding these effects is crucial for optimizing patient outcomes and managing surgical risks.

Purpose of the Study:

  • To evaluate the impact of warfarin and clopidogrel on transfusion rates and blood loss during TKA.
  • To assess the influence of these anticoagulants on postoperative wound complications and hospital length of stay.

Main Methods:

  • Retrospective chart review of TKA patients between 2003-2008.
  • Case-matching analysis comparing warfarin, clopidogrel, and control groups.

Main Results:

  • Patients on warfarin experienced significantly higher rates of blood transfusion.
  • Warfarin users also showed increased intra-operative and postoperative blood loss.
  • A longer hospital stay was observed in the warfarin group compared to clopidogrel and control groups.

Conclusions:

  • Warfarin is associated with increased transfusion requirements, blood loss, and extended hospitalization after TKA.
  • Clopidogrel did not demonstrate a significant increase in these adverse events compared to controls.
  • These findings highlight potential risks associated with warfarin use in TKA patients.

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