Australian CRISTAL RCT 23 458 OA adults undergoing hip or knee replacements & given ASA 100 mg/d or SC enoxaparin 40 mg qd for 35 days (THR) or 14 days(TKR) for VTE prophylaxis = no difference betw groups: 90D mortality was 1.67% vs 1.53% https://t.co/wBLtlyCcsF https://t.co/WFkZ2KNHFF