It's only now we have choices to warfarin that we can realise the effect of vit K blockade on OA. Nested case-control (AF pts, UK primary care): warfarin has risk vs DOAC for end-stage OA (via joint replacement) aOR 1.25 esp knee aOR 1.48 @Tuhina_Neogi #ACR20 ABST0934 @RheumNow https://t.co/XVLG8kIL0W