Causes of AVN
It isn't always a clot or cold that leads to necrosis, these are just common examples. Many types of injuries can cause enough damage that necrosis happens.
Infection can destroy surrounding tissues until they become necrotic, as can trauma like a car accident or fall from a ladder. Any time blood flow is blocked to an area, or an area is so damaged that blood can not flow to and from it, necrosis may be possible.
The good news and bad news is that a complete blockage of blood flow is typically painful, and usually painful enough that the individual seeks treatment immediately. Treatment may include surgery to restore blood flow or to remove the damaged tissues, antibiotics to prevent or treat infection, or treating the burn or other issues that caused the initial damage.
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Overview of Necrosis In the Human Body
More in Surgery. Types of Necrosis. What Is Avascular Necrosis? Was this page helpful? Thanks for your feedback! Sign Up.
- Necrotizing Soft Tissue Infections: A Primary Care Review;
- Apoptosis/ Necrosis Assay Kit (blue, green, red) (ab176749).
- What is avascular necrosis??
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Understanding the Risks of Plastic Surgery. Some people develop avascular necrosis on both sides bilaterally — such as in both hips or in both knees. See your doctor if you have persistent pain in any joint. Seek immediate medical attention if you believe you have a broken bone or a dislocated joint.
Necrotizing Soft Tissue Infections: A Primary Care Review
Avascular necrosis occurs when blood flow to a bone is interrupted or reduced. Reduced blood supply can be caused by:. For about 25 percent of people with avascular necrosis, the cause of interrupted blood flow is unknown. Untreated, avascular necrosis worsens with time.
Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. Mayo Clinic does not endorse any of the third party products and services advertised. A single copy of these materials may be reprinted for noncommercial personal use only. Avascular necrosis. Overview Avascular necrosis is the death of bone tissue due to a lack of blood supply.