It is true. One challenge in the field of orthopedics is the limited supply (or lack) of blood to tissues. Bone-forming cells and cells that break down and resorb old bone are circulated through the blood and are vital for healing bone and tissue. Sometimes a bone fracture may damage a nearby blood vessel, which may compromise healing.
Certain structures in an adult’s body do not have a blood supply. Examples include:
Avascular necrosis is the deadening of a bone caused by lack of blood flow to the area. It is most often found in the femoral head. Mesenchymal stem cell injections may increase in the blood flow pattern to this area and therefore increase regeneration of the deadening bone.