Have you ever experienced unexplained joint pain or stiffness that gets worse with movement? You might be ignoring a silent threat—Avascular Necrosis (AVN), a condition where bone tissue slowly dies due to insufficient blood supply.
What Is Avascular Necrosis (AVN)?
AVN occurs when blood flow to a bone is interrupted, causing bone cells to die. Most commonly, it affects the hip, knee, shoulder, or ankle. Over time, the bone weakens, and joints lose function. Early stages may be painless, but as the damage progresses, severe discomfort and mobility issues follow.
Symptoms and Self-Check Tips
Key symptoms include pain when walking or standing, groin or hip pain, and limited range of motion. Try walking up stairs or squatting—if pain intensifies, a scan may be necessary. AVN diagnosis is typically confirmed by MRI or X-ray.
Causes and Risk Factors
Common causes include joint trauma, long-term steroid use, excessive alcohol consumption, and certain autoimmune diseases. Metabolic conditions like diabetes and high cholesterol also increase your risk. According to the NIAMS (NIH), even scuba divers and people with sickle cell anemia face higher risk.
| Key Areas Affected | Symptoms | Causes |
|---|---|---|
| Hip, Knee, Shoulder | Pain, limited motion, limping | Trauma, Steroids, Alcohol, Illness |
Treatment and Recovery Options (2025 Update)
Mild cases respond well to conservative treatment like reduced weight-bearing, physical therapy, and medication. Advanced therapies include:
- Stem cell injections
- Shockwave therapy
- Bone grafting and core decompression
- Joint replacement in severe cases
Treatment choice depends on the disease stage. According to AAOS (American Academy of Orthopaedic Surgeons), early diagnosis is critical for preserving joint health.
Lifestyle Tips for Prevention
- Avoid excessive drinking
- Use steroids only under medical supervision
- Exercise regularly to boost blood circulation
- Manage conditions like diabetes and cholesterol
Stay updated with bone health strategies via trusted sources like the Mayo Clinic.
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