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Classification of Osteoarthritis

Topic Overview

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. Secondaryosteoarthritis 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:

  • Inherited diseases of iron, calcium, or copper storage, such as hemochromatosis, hyperparathyroidism, or Wilson's disease.
  • Neurologic disorders that result in the loss of nerve function.
  • Congenital diseases that cause an imbalance in the joints.
  • Bone disorders that affect joints.

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.

Related Information

Credits

ByHealthwise Staff
Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
Martin J. Gabica, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Specialist Medical ReviewerStanford M. Shoor, MD - Rheumatology

Current as ofOctober 10, 2017


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