Fig. 239. Fig. 240.
Morgan Method.
Zeis Method.—To overcome the difficulty of sliding this bridgelike flap, Zeis advocates ablating the diseased area in quadrilateral form and forming the lip of unbroken tissue by making the flap two-tailed (see [Fig. 241]), each flap meeting anteriorly in a bridge of tissue sufficiently wide to permit of the formation of the required lower lip and extending obliquely downward and backward upon the submental surface, having their pedicles as far back and upon the neck as is necessary to allow the two-tailed flap to move forward into position.
The parts are slid into position and sutured, as shown in [Fig. 242].
Unfortunately the tissue of the neck is not very thick, nor is it well nourished, factors that do not make it very satisfactory for cheiloplastic purposes.
Fig. 241. Fig. 242.
Zeis Method.
Delpech Method.—Delpech has utilized the skin of the anterior neck region in the following manner: He ablates the extensive diseased area, as shown in [Fig. 243], and dissects up an inverted triangular pedunculated flap of skin from the hyoidean region of the neck, having its raw surfaces brought face to face at its distal extremity sufficiently to line the newly formed lip with skin which eventually would take on the function of mucous membrane.