Classification of Osteoarthritis
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Osteoarthritis is a common cartilage condition and a major cause of pain and disability in older adults. Primary osteoarthritis results from changes over time often linked to things such as age, obesity, and a family history of osteoarthritis. Secondary osteoarthritis is caused by other conditions that damage cartilage.
|Primary osteoarthritis||Secondary osteoarthritis|
|It is usually limited to one or a small number of joints.||It may be limited to a small number of joints if injury-related, or it may be in joints throughout body if disease-related.|
It is seen in spine, hips, knees, thumbs, and top two sets of finger joints.
It is seen in hips, ankles, shoulders, wrists, and the middle set of finger joints.
|No specific inflammatory or metabolic condition known to be associated with arthritis is present.||Conditions that cause damage to cartilage may be present, such as:|
|There is no history of specific injury or trauma.||There may be a history of injury to joints, such as fractures and tears, or history of trauma to joints, such as repetitive heavy lifting or kneeling.|
Credits Back to top
|Primary Medical Reviewer||Anne C. Poinier, MD - Internal Medicine|
|Specialist Medical Reviewer||Stanford M. Shoor, MD - Rheumatology|
|Last Revised||April 8, 2011|
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