The complication to be feared is peritonitis of the pelvic cavity owing to the sutures tearing out and allowing infective material to pass from the bowel into the cavity.
Slight cases of prolapsus might possibly be treated by the injection in lines of melted paraffin wax beneath the mucous membrane of the last part of the bowel. The injection is made by means of a large syringe provided with a long needle, the needle being gradually withdrawn as the melted wax is expressed. Four “pillars” of wax are usually injected at equidistant points. As they solidify they support the bowel and prevent the recurrence of the prolapse. The operation, however, is delicate, and scarcely to be recommended in pigs. Moreover, in man, in whom it has chiefly been practised, the deferred results have not always proved satisfactory.
CHAPTER V.
RESPIRATORY APPARATUS.
TREPHINING THE FACIAL SINUSES.
This operation is necessary when pus, tumours, or parasites exist within the sinuses, and in some cases where tumours form within the nasal cavities, etc.
TREPHINING THE HORN CORE.
This cavity is opened in front, at the base of the horn, about ¾ of an inch above the keratogenous band.
FRONTAL SINUS.
The frontal sinus may be trephined at one of two points, that is, either towards its highest or lowest extremity.
In the former case the point selected is in the direction of the axis of the horn core, about ¾ of an inch nearer the middle line than the base of the horn itself.