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Start free with EleplanIdiopathic avascular necrosis
ORPHA:399307Disease
Also called Idiopathic AVN
What it is
A rare osteonecrosis characterized by bone necrosis due to disrupted blood supply in the absence of a known cause. Affected bones include the femoral head, talus, vertebral body, humerus, and scaphoid, among others. Patients may initially be asymptomatic but subsequently present with gradually developing refractory pain, swelling, and reduced range of motion. If left untreated, the condition may progress to bone collapse with secondary degeneration, fragmentation, and pathological fracture, as well as osteoarthritis.
Key facts
- Inheritance
- Not applicable
- Classified as
- Disease
ICD-10 codes
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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