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Table 3 Recent studies on comparative VTED risk between UKA and primary TKA

From: Unicompartmental knee arthroplasty and revision total knee arthroplasty have a lower risk of venous thromboembolism disease at 30 days than primary total knee arthroplasty

Study Year(s) Design Follow-up Unicompartmental knee arthroplasty Primary total knee arthroplasty
N DVT%b PE%c VTED%d N DVT% PE% VTED%
Brown 2004–2009 Retrospective 90 days 605 0.6 2235 1.0
Drager 2011–2012 Retrospective 30 days 1340 0.5 0.0a 36,274 0.9 0.7
Duchman 2005–2011 Retrospective 30 days 1588 0.5a 0.13 27,745 1.5 0.47
Hansen 2002–2012 Retrospective 90 days 20,488 2.04a 1.56a 415,727 3.70 3.01
  1. DVT deep vein thrombosis, PE pulmonary embolus, TKA total knee arthroplasty, UKA unicompartmental knee arthroplasty, VTED venous thromboembolism disease
  2. aIndicates significant difference compared to corresponding TKA value, P < 0.05
  3. bDeep vein thrombosis percentage
  4. cPulmonary embolism percentage
  5. dVenous thromboembolic disease percentage