Tuesday, May 28, 2019
Skin Grafting :: essays research papers fc
Skin GraftingSkin grafting, or, the transplanting of pare down and other underlying tissues types to another location has been used for about three thousand years. It originally began with the Hindu Tilemaker Caste System where skin grafting was used to reconstruct noses that had been amputated as punishment. Over time, it evolved, and in this con evanescent shape up we possess two major means by which to transplant skin split-thickness skin grafting and full-thickness skin grafting. In split-thickness skin grafts, the skin graft includes moreover the epidermis and a portion of the dermis. The thickness of the slice can be broken down further into a thin layer (.008-.012 mm), a sensitive layer (.012-.018 mm), and a thick layer (.018-.030 mm). This type of skin grafting is used primarily when cosmesis, or, the concern for the appearance of the patient, is not a key concern, or when the defect is too large for the use of a full-thickness skin graft. Split-thickness skin grafts ar e employed in various situations including chronic non healing cutaneous ulcers, temporary coverage to allow for the observation of a possible tumor reoccurrence, surgical correction of depigmenting disorders, and coverage of burn areas to accelerate wound healing and reduce the divergence of fluids. The procedure for harvesting and transplanting split-thickness grafts begins with the measurement of the skin defect. A purse-string situated around the defect reduces its size and thus also the size of the graft that mustiness be harvested from the donor. Effective donor sites include thighs, buttocks, and upper arms. Then the donor site is lubricated with sodium chloride and a sterile tongue depressor is placed across the donor site to create a flat surface. The surgeon then applies the dermatome to the donor site and slices off the necessary layer of skin. The newly harvested skin is placed in a sodium chloride solution and is prepared to be meshed. Meshing is advantageous when on e wants to increase the ratio of the skin graft. By placing it in the mesher, the graft becomes flatter and obtains a diamond plate appearance. Keep in mind that while it is acceptable to trim the graft to fit the recipient site, it is break up to have some overlapping between the donor tissue and the recipient bed. The slight-thickness skin graft is secured by staples and a bolster may be apply to encourage graft apposition to the recipient bed, to decrease shearing forces, and to maintain a moist environment for the graft.
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