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Acellular dermis is a type of biomaterial derived from processing human or animal tissues to remove cells and retain portions of the extracellular matrix (ECM). These materials are typically cell-free, distinguishing them from classical allografts and xenografts, can be integrated or incorporated into the body, and have been FDA approved for human use for more than 10 years in a wide range of ...
Allogeneic: The donor and recipient are of the same species (human→human, dog→dog; allograft). Xenogeneic: The donor and recipient are of different species (e.g., bovine cartilage; pig skin; xenograft or heterograft). Prosthetic: Lost tissue is replaced with synthetic materials such as metal, plastic, or ceramic (prosthetic implants). [4]
The transplant is called an allograft, allogeneic transplant, or homograft. Most human tissue and organ transplants are allografts. It is contrasted with autotransplantation (from one part of the body to another in the same person), syngenic transplantation of isografts (grafts transplanted between two genetically identical individuals) and ...
Allograft skin often comes from cadaver skin and is mostly used to treat burn victims. Lastly, xenografted skin comes from animals and provides a temporary healing structure for the skin. They assist in dermal regeneration, but cannot become part of the host skin. [23] Tissue-engineered skin is now available in commercial products.
Tissue transplantation is a surgical procedure involving the removal of tissue from a donor site or the creation of new tissue, followed by tissue transfer to the recipient site. [ 1 ] [ 2 ] The aim of tissue transplantation is to repair or replace tissues that are missing, damaged, or diseased, thereby improving patients' survival ...
[3] [6] Cranial implants are placed and secured through surgical stabilisation using surgical wires, mini plates and screws to fill gaps in the bone of the skull, called the bone flap. [10] The conduct of alloplasty on the cranium restores lost or deficient use of the brain through the repair of mechanical defects, but is also able to provide ...
The bone may be autologous, typically harvested from the iliac crest of the pelvis, or banked bone/allograft. [2] Vascular grafting – the use of transplanted or prosthetic blood vessels in surgical procedures. Ligament grafting repair – as with anterior cruciate ligament reconstruction or ulnar collateral ligament reconstruction.
A face transplant is a medical procedure to replace all or part of a person's face using tissue from a donor. Part of a field called "Vascularized Composite Tissue Allotransplantation" (VCA) it involves the transplantation of facial skin, the nasal structure, the nose, the lips, the muscles of facial movement used for expression, the nerves that provide sensation, and, potentially, the bones ...