musculoskeletal and connective tissue disorders
Osteoarthritis (OA)
Classification of Osteoarthritis
Osteoarthritis is classified as primary (idiopathic) or secondary to some known cause. may be localized to certain joints (eg, Chondromalacia Patellae is a mild osteoarthritis that occurs in young people). Primary osteoarthritis is usually subdivided by the site of involvement (eg, hands and feet, knee, hip). If primary osteoarthritis involves multiple joints, it is classified as primary generalized osteoarthritis. results from conditions that change the microenvironment of the cartilage or joint structure. These conditions include significant trauma, congenital joint abnormalities, metabolic defects (eg, Hereditary Hemochromatosis , 