Ischemic necrosis is a disorder that is brought about by the temporary or permanent loss of blood supply to an area of your bone that causes the death of bone tissue. This, in turn, can lead to tiny breaks that develop in your bone. This may cause the eventual collapse of your bone. If this takes place near one of your joints, it may result in the collapse of the surface of your joint.
Ischemic necrosis is a disorder that may start in anyone at any age. It can begin in children or the elderly. However, most of the time, this disease strikes people who are in their 30s, 40s and 50s.
Ischemic necrosis occurs in both men and women. However, it primarily develops in men.
There are about 1 in 27,000 people who are afflicted with ischemic necrosis in the United States. Somewhere around 10,000 to 20,000 people will get this disease every year in the United States.
Other Names of Ischemic Necrosis
Ischemic necrosis is known by other names. It is also called avascular necrosis, bone infarction, aseptic necrosis, avascular necrosis of bone, ischemic necrosis of bone, ischemic bone necrosis and osteonecrosis.
Possible Causes of Ischemic Necrosis
Most of the time, ischemic necrosis is caused by some type of trauma to your bone, such as a bone fracture (broken bone) or a dislocated joint. The reason for this is due to the fact that the trauma causes damage to your blood vessels that carry blood to your bone.
There are other things that can lead to ischemic necrosis. Some of these are:
- Sickle cell anemia
- Taking chemotherapy and radiation therapy treatments for some type of cancer
- Taking corticosteroids
- Drinking too much alcohol
- Decompression disease (the bends)
- Gaucher’s disease
You may not have any signs or symptoms at all in the early stages of ischemic necrosis. However, ischemic necrosis is a disease that is progressive. What this means is that this disease becomes worse as time goes on.
The first sign or symptom that you usually experience with ischemic necrosis is pain in your joint that is affected by the disorder. When the pain originates, you usually only have it when weight is placed on your affected joint.
However, as ischemic necrosis gets worse, you may experience pain even when you are resting. Ischemic necrosis may also cause you to lose range of motion in your affected joint.
The pain that ischemic necrosis brings about usually takes place gradually. However, if ischemic necrosis is due to an injury or accident, your pain may begin suddenly.
The pain caused by ischemic necrosis may range anywhere from being mild to severe. Your pain may dramatically worsen if your bone and the surrounding surface of your joint collapse.
The period of time from when your first signs and symptoms begin until the time when you lose your joint function with ischemic necrosis is something that varies from person to person. However, this loss of joint function is usually something that happens during a period of anywhere from several months to over a year.
You may experience ischemic necrosis in a bilateral way. For example, this disease may affect both of your hips or both of your knees at the same time.
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