Medically Reviewed by Dr Wang Lushun Precisely what is Avascular Necrosis (AVN)? Avascular necrosis, also known as osteonecrosis, takes place if the blood offer to bone cells is disrupted, resulting in the death of bone tissue. It commonly targets the hip joint, specially the femoral head–the higher “ball” percentage of https://www.theorthopaedicandpainpractice.com/what-is-avascular-necrosis-of-the-hip/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB