๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Flap elevation
Flap elevation
Scoring incisions can be made at the vermillion border on both the flap and recipient defect to allow for precise re- approximation if skin markings become blurred. A fullthickness incision is made on the side opposite the pedicle. The labial artery is identified and ligated. The surgeon then moves to the pedicle side of the flap and transitions to blunt dissection at the orbicularis muscle to prevent transection of the labial artery. The pedicle should be approximately 1 cm in size to preserve venous outflow, which limits congestion and edema, as a wider or thicker pedicle can compress both the arterial supply and venous return. Hemostasis is achieved, and the donor site is closed in a layered fashion starting with oral mucosa. When suturing mucosa, the suture knots should face the oral cavity. Of note, a small opening should remain in the donor site at the origin of the pedicle to facilitate its rotation. The flap is rotated 180 degrees toward the defect.