Improved continence was achieved after neosphincter implantation in three-quarters of the patients. Early infection and rectal erosion, together with difficulty in evacuating, are still major concerns with this technique.
Faecal incontinence can severely affect quality of life, but as it has no influence on life expectancy, the long-term efficacy of any treatment must be taken into account.Most reports on new treatments for faecal incontinence describe short-term results and are rarely followed by a later review of the same group of patients; the few long-term reviews of traditional surgery are disappointing. The authors evaluated long-term outcome after implantation of an artificial bowel sphincter (ABS) (ActiconTM Neosphincter ABS; American Medical System, Minnetonka, Minnesota, USA) to determine whether the results tend to worsen with time. In the present study, obstructed defaecation was a frequent problem that led several patients to deactivate the pump. Together with the manometric findings of low anal canal resting pressure, even with the device activated, this suggests that the ABSmay function as a passive obstacle to the passage of faeces in the long term, like Thiersch’s sling, rather than as a dynamic sphincter. Furthermore, the ABS, like any foreign matter placed in the human body, may displace or erode, either to the rectum or to the perineum. Overall, the present study shows that the results of anal sphincter replacement using an ABS dynamic prosthesis deteriorate with time and that the long-term results may not be as good as reported previously
In order to ascertain whether plastic surgery for rectocele is of value in the treatment of outlet obstruction, a retrospective study was made of 21 women complaining of difficulty in expelling faeces: 13 patients (group A) underwent surgery with transanal longitudinal plication of the anterior rectal wall (Block's technique), and 8 patients (group B) had colpoperineoplasty which, in 2, was associated with bladder-neck suspension following the Raz-Peyrera technique for urinary incontinence. The mean follow-up was 24.2 +/- 18.7 and 36.8 +/- 17.8 months respectively. In 11 group A patients (80.9%) and 6 group B patients (75%) cure, or an improvement, was achieved. Of the remaining 4 patients (19%), recurrent rectocele was found in 2 (one group A and one group B) and intestinal transit time tests detected colonic constipation in one group A and in one group B patient. It is concluded that surgery can resolve outlet obstruction from rectocele, but Block's technique is preferable because it is more straight-forward and easier.
Iatrogenic femoral nerve damage has already been described after hysterectomy, but never after abdominal rectopexy. We report the occurrence of femoral nerve injury in six of twenty-four patients operated on for complete rectal prolapse (n = 21) or rectorectal intussusception (n = 3). Four patients had unilateral and two bilateral lesions. All six patients had clinical and electromyographic (EMG) assessment. EMG findings were given a score from 0 (complete denervation) to 5 (normal findings). During the immediate postoperative period all patients complained of reduced cutaneous sensation of the anterior surface of the thigh and knee, and quadriceps weakness. EMG showed complete denervation in one patient, marked denervation in three, and slight or moderate denervation in the remaining two. In five patients there was complete clinical resolution at 3 to 12 months postoperatively, while one showed an improvement only. EMG control performed in four patients showed a full recovery in three. Two patients refused this examination. We believe femoral nerve damage was caused by the large-bladed self-retaining retractors used, which directly or indirectly compressed the femoral nerve.
Clinical severity of fecal incontinence is correlated with some manometric parameters. Severity of denervation of the anal striated sphincters does not appear to influence severity of fecal incontinence.
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