Aspirin Prophylaxis of Venous Thromboembolism after Total Hip Replacement

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Abstract
We assessed aspirin prophylaxis against venous thromboembolism in a prospective, controlled, double-blind study of patients over 40 years of age, who had undergone total hip replacement. Radiographic phlebography was the diagnostic end point. Thromboembolism developed in 11 of 44 patients receiving aspirin, as compared to 23 of 51 receiving the placebo (P<0.03).