High C1r expression is associated with cartilage damage in post-traumatic osteoarthritis.
. BACKGROUND The complement system undergoes extensive activation in osteoarthritis. Nevertheless, the specific function of C1r, a constituent of this system, in post-traumatic osteoarthritis (PTOA) remains unclear. PURPOSE To explore the clinical value and function of C1r in PTOA. METHODS Synovial fluid was obta...