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Classification of Osteoarthritis

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Osteoarthritis is a common cartilage condition and a major cause of pain and disability in older adults. Primaryosteoarthritis 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.

Types of osteoarthritis
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.

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WebMD Medical Reference from Healthwise

Last Updated: April 09, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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