avascular necrosis
Pronunciation: ay-VAS-kyuh-lar neh-KROH-sis
Death of bone tissue due to interrupted blood supply, commonly occurring after certain fractures or dislocations.
Full Definition
Avascular necrosis (AVN), also known as osteonecrosis, refers to the death of bone tissue resulting from temporary or permanent loss of blood supply to the bone. In orthopedic trauma, AVN frequently occurs as a complication of femoral neck fractures, scaphoid fractures, and humeral head fractures where the blood supply is particularly vulnerable. The condition can lead to bone collapse and arthritis if untreated. Recognition of AVN risk is crucial for editors reviewing trauma case reports and surgical outcome studies.
Usage
Usage note: Often abbreviated as AVN in clinical documentation. Ensure consistent terminology when editing between 'avascular necrosis' and 'osteonecrosis'.
In Context
- "The patient developed avascular necrosis of the femoral head six months post-fracture." — Case report
- "MRI findings were consistent with avascular necrosis in the scaphoid bone." — Radiology report