Wei Laboratories, Inc.
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Toll Free: 888.919.1188 International 408.970.8700
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What is Avascular Necrosis?
Avascular necrosis is the death of bone tissue due to a lack of blood supply. Also called osteonecrosis, avascular
necrosis can lead to tiny breaks in the bone and the bone's eventual collapse.
The blood flow to a section of bone can be interrupted if the bone is fractured or the joint becomes dislocated.
Avascular necrosis is also associated with long-term use of high-dose steroid medications and excessive alcohol
intake.
The most common joint affected by avascular necrosis is the hip. Avascular necrosis worsens with time, so managing
it is a lifelong process.
Symptoms
Avascular necrosis typically causes pain and reduced range of motion in the affected joint. The most common joints
affected by avascular necrosis include:
• Hip. In addition to pain in the hip joint itself, pain also may radiate into your groin or go down your thigh to your
knee.
• Knee. In avascular necrosis of the knee, the pain occurs most often on the inside of the knee and worsens with
activity.
• Shoulder. Several bones come together at the shoulder, but the one most commonly affected by avascular
necrosis is the upper arm bone.
Some people experience avascular necrosis bilaterally — for example, in both hips or in both knees. Signs and
symptoms may appear suddenly if caused by an injury. In other cases, the pain and stiffness may build up slowly over
several months. Some people with avascular necrosis experience no symptoms at all.
Other joints that are affected by avascular necrosis include:
• Ankles
• Feet
• Hands
• Jaw
• Spine
• Wrists
Causes
• Joint injury
• Narrowed blood vessels
• Pressure inside the bone
Western medicine treatments
The treatment goal for avascular necrosis is to prevent further bone loss. What treatment you receive depends on the
amount of bone damage you already have. Early stages of avascular necrosis may benefit from more conservative
treatment, while later stages may require surgery.
Medications
• Anti-inflammatory drugs to relieve the pain and inflammation associated with avascular necrosis.
Therapy
• Rest
• Exercises
• Electrical stimulation
Surgery
• Bone transplant
• Bone reshaping
• Joint replacement
Alternative Medicine
There is a significant progress using alternative medicine in this area.
If you want a referral of an expert alternative medicine practitioner in your
local area, please use our free referral service by calling our toll-free at
1-888-919-1188, or e-mail us to wei@weilab.com, or click the button
at the right to have us contact you.
Information gathered from the Mayo Clinic
Referral Service for Patients with Avascular Necrosis
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