In pts undergoing hip or knee arthroplasty for OA, aspirin (3.45%) compared with enoxaparin (1.82%) resulted in a significantly higher rate of symptomatic VTE within 90 days, defined as below- or above-knee DVT or pulmonary embolism https://t.co/7hgLbynNx6 https://t.co/HMc4UbMcdy