| Up to 10 per cent of fractures that heal poorly require bone grafting using either the patient's own bone tissue or that from a donor.
Bone grafting is not a straightforward process. It is greatly limited by a lack of blood supply to the new bone and by the limited number of regenerating bone cells in the grafted tissue.
Other disadvantages of bone grafting are the chronic pain at the donor site where the patient's own bone is used, and the problem of immune rejection where bone is obtained from a donor.
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