I presume a bone graft doesn't bring along its blood vessels. How often does the graft not survive?

It is little comp. Complicated, most bone grafts are expected to be reabsorbed and replaced as the natural bone heals over a few months’ time. Most bone grafts are expected to be reabsorbed and replaced as the natural bone heals over a few months’ time. Vascularized bone graft do survive because they have blood attach to them.
Not often. Most bone grafts are successful. The blood supply comes from the surrounding jaw bone and the overlying layer in the gum called the periosteum.
A scaffold. A graft usually serves as a scaffold, to conduct blood vessel into the area (neovasculargenesis) which brings along the mesenchymal cells for differentiation into bone cells, proliferation, and maturation. These processes will not occur if there is an infection, or the graft may not survive. The survival of the graft is based largely on technique, follow up, and post op care of patient/surgeon.

Related Questions

Can nicotine cause avascular necrosis as it constricts blood vessels? I know it stopped my recent bone graft in a spinal fusion from growing properly.

Yes,excellent questn. You are very perceptive. There is a tremendous concern that smoking could cause this although more common causes include the use of steroids, traumatic injury and excessive alcohol. . Read more...
Maybe. Smoking is well-known to impair new blood vessel growth into areas of bone fusion and prevent good healing. There are thousands of chemicals in smoke. Nicotine alone has been well studied and tends to show poor bone formation and mineralization. So using nicotine as a supplement instead of smoking still is a risk for your spinal fusion. You have one spine -- take good care! Good Luck! Read more...