Definitions for "Osteonecrosis"
Death of bone tissue.
can be a reason for orthopaedic surgery to the hip (especially young people). It indicates the death of certain types of tissue either without a blood supply or a poor supply of blood; e.g. in the cartilage or bone. Thus osteonecrosis means death of bone.
The death of bone in mass; distinguished from caries or relatively small foci of necrosis in bone.