Avascular necrosis (AVN), also known as osteonecrosis or aseptic necrosis, is a degenerative joint condition that occurs when the blood supply to the bone is disrupted, causing the bone to die and collapse. AVN is not typically life-threatening, but it can lead to severe pain and disability.
Symptoms of Avascular Necrosis
The symptoms of AVN can vary depending on the severity and location of the condition. The most common symptom is pain and stiffness in the affected joint. Other symptoms can include joint swelling, limited range of motion, and a grating sensation when the joint is moved.
Risk Factors for Avascular Necrosis
AVN is more common in people who have a history of alcohol abuse, steroid use, trauma, or long-term immobilization. People with certain medical conditions, such as sickle cell anemia, lupus, and diabetes, may also be at an increased risk for AVN.
Diagnosis of Avascular Necrosis
To diagnose AVN, a doctor will typically perform a physical examination and order imaging tests, such as an X-ray or magnetic resonance imaging (MRI). These tests can help the doctor determine the extent of the damage to the bone.
Treatment for Avascular Necrosis
The treatment for AVN depends on the severity of the condition and the patient's overall health. In some cases, conservative treatments, such as physical therapy, rest, and medications, can be effective. In more severe cases, surgery may be necessary to repair the bone or replace the joint.
Although AVN is not life-threatening, it can cause significant pain and disability. If you are experiencing any of the symptoms of AVN, it is important to talk to your doctor to determine the best treatment plan for you.