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If the left sided outflow root needs to be enlarged to fit the pulmonary autograft, the procedure is called Ross-Konno. [3] An alternative to a pulmonary homograft is the stentless xenograft roots such as the Freestyle Porcine Aortic Root by Medtronic. [2] [12] An external Dacron graft can be used to reinforce the pulmonary autograft. [2]
In orthopaedic medicine, a bone graft can be sourced from a patient's own bone in order to fill space and produce an osteogenic response in a bone defect. However, due to the donor-site morbidity associated with autograft, other methods such as bone allograft and bone morphogenetic proteins and synthetic graft materials are often used as alternatives.
Sometimes an autograft is done to remove the tissue and then treat it or the person before returning it [8] (examples include stem cell autograft and storing blood in advance of surgery). In a rotationplasty , a distal joint is used to replace a more proximal one; typically a foot or ankle joint is used to replace a knee joint.
When the human body is unable to regenerate the lost bone tissue, surgeons come in and replace the missing bone using autografts, allografts, and synthetic grafts (artificial bone). When comparing artificial bone to autograft and allograft, it is less invasive and more biocompatible since it avoids the risk of unknown viral infections. [3]
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Cell cultured epithelial autograft (CEA) procedures take skin cells from the person needing the graft to grow new skin cells in sheets in a laboratory; because the cells are taken from the person, that person's immune system will not reject them. However, because these sheets are very thin (only a few cell layers thick) they do not stand up to ...
Osteoconduction is termed as "the property of a material to support tissue ingrowth, osteoprogenitor cell growth, and development for bone formation to occur". [2] In the context of bone grafting it occurs when the bone graft material serves as a scaffold for new bone growth that is perpetuated by the native bone.