The real term is Osteonecrosis Synonyms of Osteonecrosis aseptic necrosis avascular necrosis of bone ischemic necrosis of bone What is avascular necrosis-osteonecrosis ? AVN-ON is a disease that results from the temporary or permanent loss of blood supply to the bone. When blood supply is cut off, the bone tissue dies and the bone collapses.…... Continue Reading →