Osteoarthritis - Wikipedia, the free encyclopediaOsteoarthritis (OA) also known as degenerative arthritis or degenerative joint disease or osteoarthrosis, is a group of mechanical abnormalities involving degradation ...Osteoarthritis - Causes - Diagnosis - Symptoms - TreatmentOsteoarthritis causes, diagnosis, symptoms, and treatment. Osteoarthritis, the most common form of arthritis is also called wear-and-tear arthritis, old person's ...Osteoarthritis (Degenerative Arthritis) Causes, Diagnosis ...Osteoarthritis (OA or degenerative arthritis) is a joint disease caused by cartilage loss in a joint. Pain and stiffness are symptoms. Read about diagnosis and treatment.