Joint damage in rheumatoid arthritis: Lessons learned from an extended 36-joint ultrasonography and 28-joint Disease Activity Score assessments.

Severity of ultrasound-detected bone erosions was significantly greater when both positive PD and a greater degree of GS joint inflammation were present in RA. This association was not observed when either component was absent. Single time point ultrasound joint inflammation assessment - and not DAS28 - is reflective of joint damage severity in RA patients.