Abstract
A multicenter, prospective, epidemiologic study on prevalence of deep venous thrombosis detected by bilateral ascending venography in patients in Japan undergoing total hip or total knee arthroplasty without prophylactic anticoagulant therapy revealed that the prevalence of deep venous thrombosis was 27.4% in patients who had total hip arthroplasty and 50.0% in those who had total knee arthroplasty. The prevalence of deep venous thrombosis was significantly higher in patients who had total knee arthroplasty than in those who had total hip arthroplasty. Body mass index (taken as an indicator of obesity) and age (in elder patients) were identified as statistically significant risk factors.
