For vesico-utero-vaginal or juxta-cervical fistula. In this affection the cervix is involved, and it must therefore be carefully differentiated from the vesico-vaginal variety, in which the cervix is intact.
In operating upon such cases the chief difficulty will be found in denuding the surfaces necessary for the introduction of the sutures, owing to the density of the cicatricial tissues, which are always present. This is best overcome by drawing the cervix forcibly downwards and backwards and incising the anterior cul-de-sac; the bladder wall with its fistulous opening is then dissected off the anterior surface of the cervix and carefully sutured independently of the cervical laceration; the latter is treated by suture in the usual way (see [p. 128]). In the deeper forms of juxta-cervical fistula, the above technique is impossible, and suprapubic incision and suture of the bladder must be substituted.
RECTO-VAGINAL FISTULA
This condition may be defined as an opening between the rectum and vagina through which flatus, or fæces, or both, may pass from the former into the latter; it is chiefly the result of an imperfect union subsequent to an operation for complete perineum laceration. It may also be caused by the rupture of a pelvic abscess or by the spread of primary malignant disease of the rectal wall.
Operation. If the sphincter ani is incompletely united, it will be found much the most satisfactory proceeding to divide the healed portions of the perineum and make a complete perineal laceration; this may then be treated as described above (see [p. 128]).
If, however, the sphincter is intact and serviceable the fistula should be pared and the edges brought together by silk sutures. It is not infrequently necessary to perform a temporary colostomy (see Vol. II) in order to divert the fæcal contents of the bowel during the process of healing.
OPERATIONS FOR CYSTOCELE
In cystocele there is prolapse of the anterior vaginal wall and the corresponding area of the posterior bladder wall. Cystocele often complicates rectocele and prolapsus uteri, and operation upon it is often carried out in combination with colpo-perineorrhaphy.
Operation. The operation for the cure of this affection is very simple, and may be performed:—