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Bone grafting is a surgical procedure that replaces missing bone in order to repair bone fractures that are extremely complex, pose a significant health risk to the patient, or fail to heal properly. Some small or acute fractures can be cured without bone grafting, but the risk is greater for large fractures like compound fractures.
Bone tissue is removed by osteoclasts, and then new bone tissue is formed by osteoblasts. Both processes utilize cytokine (TGF-β, IGF) signalling.In osteology, bone remodeling or bone metabolism is a lifelong process where mature bone tissue is removed from the skeleton (a process called bone resorption) and new bone tissue is formed (a process called ossification or new bone formation).
Bone healing, or fracture healing, is a proliferative physiological process in which the body facilitates the repair of a bone fracture. Generally, bone fracture treatment consists of a doctor reducing (pushing) displaced bones back into place via relocation with or without anaesthetic, stabilizing their position to aid union, and then waiting ...
As well as susceptibility to breaks and fractures, osteoporosis can lead to other complications. Bone fractures from osteoporosis can lead to disability and an increased risk of death after the injury in elderly people. [29] Osteoporosis can decrease the quality of life, increase disabilities, and increase the financial costs to health care ...
Artificial bone refers to bone-like material created in a laboratory that can be used in bone grafts, to replace human bone that was lost due to severe fractures, disease, etc. [1] Bone fracture, which is a complete or partial break in the bone, is a very common condition that has more than three million US cases per year. [ 2 ]
However, acute traumatic osteochondral lesions or surgically created lesions extending into subchondral bone, e.g. by Pridie drilling, [2] spongialization [3] abrasion [4] or microfracture causing the release of multipotent mesenchymal stem cells from the bone marrow, may heal with repair tissue consisting of fibrous tissue, fibrocartilage or ...
As bone mass declines with age, the risk of fractures increases. Annual incidence of osteoporotic fractures is more than 1.5 million in the US and notably 20% of people die during the first year after a hip fracture. [5] It costs the US health system around $17 billion annually, with the cost projecting to $50 billion by 2040. [5]
Furthermore, the analysis of bone fracture is complicated by the bone remodeling response, where there is a competition between microcrack accumulation and the remodeling rate. If the remodeling rate is slower than the rate microcracks accumulate, bone fracture can occur. Furthermore, the orientation and location of the crack matters because ...