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A comparative study of full-thickness skin grafting with and without subcutaneous fat preservation
Authors:Jiaxi Liu  Linghan Qu  Baoqiang Song
Institution:Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'An, People's Republic of China
Abstract:Skin grafting is an important method of wound repair and reconstruction. Skin grafting can be classified using multiple classification criteria. We often perform full-thickness skin grafting (FTSG) for small wound areas; however, the traditional FTSG technique frequently causes postoperative scar depression at the donor site, especially in the abdomen. This study aimed to determine whether preserving the subcutaneous fat when performing FTSG can improve donor site prognosis. We reviewed 25 patients who underwent autologous FTSG in the last 3 years. Among them, subcutaneous fat was preserved in 11 patients (experimental group), whereas it was not preserved in 14 patients (control group). Using a 3D camera and the Patient and Observer Scar Assessment Scale (POSAS), we evaluated the donor site postoperatively. According to POSAS, vascularization was significantly more severe in the experimental group. The Antera 3D camera revealed more severe scar depression at the donor site in the control group. The processing time for graft take, subcutaneous fat trimming and donor site closure was less in the experimental group than in the control group. Preserving subcutaneous fat at the donor site improved patient outcomes by reducing donor site depression after FTSG.
Keywords:donor site depression  skin transplant  subcutaneous fat
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