Unilateral and Bilateral

This facial defect while possibly unilateral, as in hemiatrophy, is generally met with in the bilateral form due to either hereditary causes or a lack of nourishment of the parts, the latter usually involving the greater part of the face. Chronic diseases and the cachexia dependent upon disease may be the origin, in which the deformity is rarely ever overcome entirely by internal treatment and massage of the parts; if anything, massage tends to elongate the skin about the temples, causing a worse disfigurement in the form of numerous fine furrows.

The correction of the defect under consideration may be readily overcome by repeated and careful injections of a hydrocarbon of low melting point.

The author prefers the use of sterilized vaselin injected in its cold state. The use of paraffin of high melting points or its compounds is not advisable, and if employed leaves the temples uneven or lumpy, due to the unequal organization or new tissue formation caused thereby, at the same time causing sagging of the skin of the adjacent parts, particularly the upper eyelids, owing to the added weight of the new tissue growth occasioned by such preparations.

Contrary to general expectation, this part of the face is readily injected and corrected.

The skin should be pinched up with the thumb and forefinger of the left hand and the needle introduced with the right hand in such way as to exclude the puncturing of blood vessels.

To assure the operator against such difficulty the needle may be withdrawn after insertion, and if blood does not trickle from the wound it may be reintroduced without pain to the patient and the injection begun.

It is not advisable to correct the defect at one sitting. One third or one half of the depressed area may be overcome by one injection. The resultant tumefaction must then be thoroughly molded out, until little seems to have been accomplished by the injection.

The operator trusts in these particular cases more to the development of new connective tissue than in any other part of the face, except perhaps in the correction of an interciliary furrow. It is surprising how much is attained by the most conservative injections in and about the temples.

The molding of the injected mass must be done in a superio-posterior direction to avoid forcing it into the upper eyelids, resulting in the same overdevelopment previously referred to.