Fig. 224. Fig. 225.
Bruns Method.
In cases where the entire lip is removed he cuts two square flaps from the upper anterior region of the cheeks extending as far upward as the alæ of the nose (see [Fig. 226]).
He rotates these flaps into the open wounds and sutures them into place, as shown in [Fig. 227].
The border of the lip is lined with the mucous membrane of the cheek flaps then brought down. If the latter has become too stretched longitudinally, he relieves it at its base by transverse incisions.
Fig. 226. Fig. 227.
Bruns Bilateral Method.
Buchanan Method.—Buchanan’s method consists of removing the diseased area by an elliptical incision A, B, A. A second oblique incision B, C, and a third of the same obliquity B, C, is made downward and outward upon the anterior chin. From the points C, C, two curved incisions parallel to the upper incision A, B, A, and equal to their lengths, are made to the points D, D, as shown in [Fig. 228].
The latter incisions provide two flaps, as shown in [Fig. 229]. They are dissected off from their attachment to the lower jaw and raised upward so that their upper line B is raised on a level with the former margin of the lip A, A.