Biomarker Study of 171 synovial fluid samples (54 primary OA, 57 RA, 30 Crystal,30 septic arthritis) examined the cartilage oligomeric matrix protein (COMP) to IL-8 ratio and found it can differentiate primary OA and inflamm arthritis w/ sensitivity 87% and specificity 89%… https://t.co/UH77DFgAlJ https://t.co/MfXQcl0BhW