[BMJ Publishing Group Ltd and European League Against Rheumatism Annual European Congress of Rheumatology, EULAR 2019, Madrid, 12–15 June 2019 - ()] Abstracts Accepted for Publication - AB0264 THE EXTENT OF JOINT DESTRUCTION IN THE KNEE JOINT AT THE INITIATION OF BDMARDS TREATMENT IS A PREDICTIVE FACTOR OF SUBSEQUENT TOTAL KNEE ARTHROPLASTY AND PROGRESSION OF JOINT DESTRUCTION IN PATIENTS WITH RHEUMATOID ARTHRITIS DURING LONG-TERM BDMARDS TREATMENT