Pain in knee osteoarthritis patients associates with distinct pattern of synovitis.

From: 1: Department of Rheumatology, Leiden University Medical Centre, Leiden, the Netherlands 2: Department of Orthopaedics and Department of Otorhinolaryngology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands ; 3: TNO, Leiden, the Netherlands 4: Janssen, Pharmaceutical companies Johnson & Johnson, Pennsylvania, USA ; 5: Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands 6: Department Orthopaedics, Leiden University Medical Center, Leiden, the Netherlands 7: Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands