Abstract
Perforator flaps have recently been used in the field of plastic surgery. Skin defects can be reconstructed to reach functional and cosmetic goals. With the development of reconstructive approaches, utilizing stem cells is a hopeful approach to enhance wound healing and tissue recovery. In this study, we assessed the effect of bone marrow mesenchymal stem cells on the perforator flap's survival in rats. Perforator flaps (2.5 × 11 cm) were transplanted into rats and focused on the thoracodorsal, intercostal, and deep circumflex arteries, which were randomly divided into three groups: control, saline, and bone marrow mesenchymal stem cells (7 × 106 ml). Seven days after the surgery, tissue edema, inflammation, and discharge were observed and photographed. Histological analyses were performed to determine flap survival. Hematoxylin and eosin staining was performed to assess levels of microvascular density determined in skin flaps. Rats in the bone marrow mesenchymal stem cells group exhibited higher average flap survival area, and higher microvascular density levels at the dynamical regions of the flaps compared with the other two groups. Subdermal injection of bone marrow mesenchymal stem cells significantly increased ischemic perforator flap survival due to stimulated neovascularization in rats. Our findings suggest the potential usefulness of bone marrow mesenchymal stem cells in preventing skin flap perforator tissue necrosis.
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