Free Grafts and Microvascular Anastomoses.

Skin grafts and free skin flaps are useful options for closure of wounds in which primary closure or use of traditional skin flaps is not feasible. Grafts are classified by their morphology and host-donor relationship. Free skin flaps with microvascular anastomoses are developed from previously described axial pattern flaps and have the added advantage of reestablishing robust vascular supply to the flap, but require specialized equipment and a high degree of technical expertise. Despite intensive perioperative care and the risk of graft or flap failure, skin grafts and free skin flaps can serve as rewarding methods of closing difficult wounds.