Death of bone tissue from inadequate blood supply, most commonly affecting femoral head (hip). Also affects humeral head (shoulder), talus, scaphoid. Causes collapse of joint surface leading to arthritis. Risk factors: corticosteroids, alcohol, trauma, sickle cell. Symptoms: deep aching joint pain worsening over time. Often requires joint replacement.
Post-joint replacement with complications, or bilateral involvement of major joints (both hips)
Bilateral hip involvement, or single joint with severe collapse requiring joint replacement
Advanced stage with collapse of articular surface, severe pain, marked limitation of motion affecting daily activities
Moderate symptoms. Significant pain with weight-bearing, some limitation of motion, early collapse on imaging
Early stage (pre-collapse) with minimal symptoms, diagnosed on imaging
Medical Evidence
Current diagnosis from a qualified healthcare provider, medical records documenting symptoms and treatment history
Service Connection
Evidence linking your condition to military service (service treatment records, incident reports, or nexus letter)
Personal Statement
Your detailed account of how avascular necrosis affects your daily life and when symptoms began
Lay Evidence
Buddy letters from fellow service members or family who can corroborate your symptoms
During your Compensation & Pension exam for avascular necrosis, examiners will assess your symptoms against the rating criteria above.
Be specific: Describe your worst day, not your average day
Document everything: Bring copies of all medical records and evidence
Functional impact: Explain how symptoms affect work, sleep, and daily activities
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