Global Avascular Necrosis Market Overview The Avascular Necrosis Market Overview And Analysis By Type, By Diagnosis, By Treatment , By End-User, By Region – Forecast to 2030 Avascular necrosis (AVN) is a bone disorder which occurs when bone tissue begins to die owing to the insufficient supply of blood. Avascular necrosis is often caused by joint or bone trauma, long-term steroid use, or...