013Novel Method of Substitution for Combine Through-and-through Angle of the Mouth, Fragments of Upper and Lower Lips Defect

Through-and-through defect of soft tissues of the cheek, mouth angles, upper and lower lip originate from surgical intervention of tumors of the oral cavity involving external skin, soft tissue and oral lining. The article describes an original method of one-stage reconstruction in N. N. Blokhin National Medical and Research Center of Oncology. Russian Federation’s patent № 2489096 was granted for this method. We propose to use 3 different flaps from different anatomic areas, which have varying histological structures and independent blood supply. The first flap - muscle, is formed from the biggest part of the muscles masseter from the affected side and serves to restore the functions of the lips and cheek due to the fact that after the formation of the flap two its parts fixed to the remnants of the muscles of the upper and lower lips and part of the buccal muscle. The flap is perfusion by a. maxillaris and a. facialis. The second flap - musculocutaneous, formed from the skin of areas adjacent to the defect, nasolabial or submandibular. The flap serves to replace a skin defect, defect of the cheek, upper and lower lips. The flap is perfusion by a. facialis. The third flap - fascial, formed from the temporal fascia on the affected side. The temporal fascial flap is used to replace the defect of the mucous membrane of the cheek, upper and lower lips, in addition, the red border of the lips and the corner of the mouth. The flap is perfusion by aa. temporalis profunda et superficialis. All three flaps perfectly carry out hermetic sealing of the oral cavity, independent perfusion of each flap, even in the case of necrosis of one of the flaps, allows preservation of hermeticism. The use of three flaps with different histological structure allows to achieve a good functional and aesthetic result. Flaps perform various functions, ensuring the functional and anatomical usefulness of the resected tissues. By improving the blood suppling of flaps, we reduce time for patient’s rehabilitation and postoperative damage.