Avascular Necrosis-Osteonecrosis

Avascular Necrosis-Osteonecrosis Education and Resources

The real term is Osteonecrosis

Synonyms of Osteonecrosis

  • aseptic necrosis
  • avascular necrosis of bone
  • ischemic necrosis of bone

What is avascular necrosis-osteonecrosis ?

AVN-ON is a disease that results from the temporary or permanent loss of blood supply to the bone.

When blood supply is cut off, the bone tissue dies and the bone collapses. If it happens near a joint, the joint surface may collapse.

This condition may happen in any bone. It most commonly happens in the ends of a long bone. It may affect one bone, several bones at one time, or different bones at different times.

What causes avascular necrosis?

Avascular necrosis – Osteonecrosis may be the result of the following:

• Injury

• Fracture

• Damage to blood vessels

• Long-term use of medicines, such as corticosteroids

•To many steroid injections

• Excessive, long-term use of alcohol

• Specific chronic medical conditions

What are the…

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