Study of 1207 joints in 55 RA pts shows that Xray progression over 2 yrs is significantly assoc w/ US Power Doppler (OR 2.92), erosions (OR 4.74), but also with Joint tenderness w/o swelling (OR 1.85) ! (Less signif w/ PsA) https://t.co/gue5jt6Xdx https://t.co/vhFBWTgEHW