Avascular necrosis (AVN) is a bone disorder which occurs when bone tissue begins to die owing to the insufficient supply of blood.

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 prolonged alcohol abuse

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 prolonged alcohol abuse.