1. Pain More a Cause of Arthritis Than a Symptom - US News and World Report
MONDAY, Sept. 29 (HealthDay News) -- The pain caused by osteoarthritis may be as damaging as the disease itself, according to a new study. According to a University of Rochester study published Monday in the journal Arthritis & Rheumatism, t...

2. Arthritis : Causes, incidence, and risk factors  (Trust Mark: Doctor-Reviewed)
Arthritis involves the breakdown of cartilage. Cartilage normally protects the joint, allowing for smooth movement. Cartilage also absorbs shock when pressure is placed on the joint, like when you walk. Without the usual amount of cartilage, the b...• Reviewer: Ariel D. Teitel, MD, MBA, Chief, Division of Rheumatology, St. Vincent's Hospital, New York, NY. Review provided by Verimed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

3. Septic arthritis : Causes, incidence, and risk factors  (Trust Mark: Doctor-Reviewed)
Septic arthritis develops when bacteria spread through the bloodstream to a joint. It may also occur when the joint is directly infected with bacteria by an injury or during surgery. The most common sites for this type of infection are the knee an...• Reviewer: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.