(2.) From the Forehead.—The Indian operation may be used as a last resource, in cases where, from disease, the cheeks also have suffered, and are not to be trusted to for flaps.
Operation.—1. It should be decided as to the shape and size of the portion of skin necessary, by fitting on pieces of soft leather or moulding wax. To allow for shrinking, the flap should be made at least one-third larger than is at first apparently necessary. The exact boundaries of the flap to be raised should then be marked out on the forehead by lightly pencilling it with nitrate of silver, the mark from which is not effaced by blood, as is sure to be the case with an ink line. Various shapes have been proposed for the flap varying in length of neck, in the shape of the angles, and especially in the arrangements made for the formation of a columna. Some (as Liston) prefer afterwards to provide for the columns separately, by a flap raised from the upper lip in a subsequent operation. The flap is then to be raised from the forehead, care being taken not to injure the periosteum. The incision is to be carried lower down on the side (generally the left), to which the flap is to be twisted. The flap is then to be brought round (Fig. xviii.) and carefully fitted on to the edges previously prepared for its reception. The neck must be left as lax as possible, lest by tight twisting the supply of blood be cut off, and the flaps thus deprived of nourishment. Both silk and metallic sutures are recommended. Hamilton of Dublin,[96] after a large experience of both, prefers the former.
Fig. xviii. [97]
There are various risks; sloughing of the whole flap at once, shrinking of it after weeks or even months; certain inevitable drawbacks, as the cicatrix on the forehead, the very various and ludicrous changes of colour to which the new organ is subject,—these cannot be remedied by further operation. Two points generally require a second use of the knife a few weeks after:—(1.) The neck of the flap is sure to be redundant and prominent, but can be pared. (2.) The columna almost always requires improving, and, in Liston's method, to be made. He pared the inner surface of the apex of the nose, and then raised a central flap of the lip in the middle line, about a quarter of an inch broad, and extending from the remains of the old septum to the free border, raising it from the gum, and stitched the free end of it to the prepared apex, bringing together the two divided portions of the lip by ordinary harelip sutures. Tho columna, if redundant, could be shaved down, and it was found that the mucous surface very quickly became like skin on exposure.
For other points with regard to the operation, reference may be made to the works of Liston and Skey, and Hamilton's monograph, referred to above.
Note.—The tongue and groove suture proposed by Professor Pancoast, and recommended by Professor Gross, is said to be specially suitable for such plastic operations. It is very complicated, as it requires one edge to be bevelled to a wedge shape, the other being grooved to include the wedge, thus opposing four raw surfaces, which are retained in contact by being transfixed by fine silk sutures.
(3.) There are certain cases in which neither cheeks nor forehead are available for flaps, and yet the patients press very much for some operation. If they have patience and determination, the Taliacotian or Italian operation may be attempted.
Without going into detail, the principle of it is as follows:—1. A piece of skin of suitable size was marked out over the left biceps, and defined by two longitudinal incisions, and raised from the subcutaneous cellular tissue, thus being left attached by its two ends only; a piece of linen was pulled below it. 2. After a few days the upper end was also divided, and the flap thus contracted. In a few days more the sides of the old nose were made raw, and the upper free surface of the flap also made raw and stitched to them, the arm being fastened up by a most elaborate series of bandages. 3. After a fortnight in this position, the last attachment of the flap to the arm was severed, and the new nose could then be modelled at pleasure.
The literature of the subject is exceedingly curious, especially the cases in which the new material was obtained from an accommodating friend or servant.