Why the study?
Does duplex ultrasonography accurately detect deep vein thrombosis compared to ascending contrast venography in patients after total hip or knee arthroplasty?
Population
178 consecutive patients after total hip (n = 113) or total knee (n = 66) arthroplasty
Comparison
Real-time duplex ultrasonography of the deep… vs Ascending contrast venography performed within…
Design
Cross-sectional, Venograms and DU were interpreted independently
Follow-up
within twelve hours
Authors
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Moderate sensitivity limits DU reliability for excluding post-arthroplasty DVT; leaves open need for confirmatory validation before routine use.
Does duplex ultrasonography accurately detect deep vein thrombosis compared to ascending contrast venography in patients after total hip or knee arthroplasty?
Duplex ultrasonography has high specificity but moderate sensitivity for detecting DVT after major joint arthroplasty, with a notable rate of technically inadequate studies.
Elliott et al. (1993) studied this question.