Recovery of anal sphincter function following transabdominal repair of rectal prolapse: Cause of improved continence?

Twenty-eight patients with complete rectal prolapse underwent anorectal manometry before and 6 months and 1–2 years after abdominal rectopexy and sigmoid resection in a study of the mechanisms responsible for postoperatively improved anal continence. Preoperatively, 22 patients reported defective anal control. Seven patients (all with minor incontinence) regained normal control and eight other patients achieved improved continence after surgery. Anal resting, squeeze, and voluntary contraction pressures were significantly lower for defective than for normal control, with a significant rise in these pressures at 6 months after the operation, except for those incontinent patients in whom continence was not improved. No further pressure rise was seen later. Improvement of continence was not accompanied by changes in rectal sensation or reflexive functions of the internal anal sphincter. These results suggest that recovery of the resting and voluntary contraction functions of the sphincter muscles was the cause of continence improvement observed after surgery. Anal manometry was unable to predict outcome of function. Therefore, supplementary procedures for restoration of continence are not advisable, although patients with only minor incontinence are likely to regain full continence after rectopexy alone.     

Effect of electrostimulation on sphincter function in neurogenic fecal continence

PURPOSE: This study was designed to examine the effects of electrostimulation on sphincter function. METHODS: Electric stimulation was performed twice a day for 30 minutes over a 12-week period on 10 patients with neurogenic fecal incontinence. Anal manometry was repeated after 6 and 12 weeks. RESULTS: Two patients experienced some improvement. Mean resting pressure was increased by 0.6 (–5.8 to +5.3) kPa and mean squeezing pressure by 0.3 (–1.6 to +2.6) kPa. All values remained below continent levels. An increase in squeezing pressure after both 6 and 12 weeks was recorded in only one patient. CONCLUSION: Electrostimulation does not improve internal or external sphincter function. There is no indication that it will do so in the long term either.Read at the meeting of The American Society of Colon and Rectal Surgeons, San Francisco, California, June 7 to 12, 1992.     

Continence is improved after the ripstein rectopexy

PURPOSE: This study was undertaken to evaluate anal manometric changes after Ripstein's operation for rectal prolapse and rectal intussusception and to study the clinical outcome following the operation, with special reference to anal incontinence. METHODS: Forty-two patients with rectal prolapse or rectal intussusception were subjected to anorectal manometry preoperatively and seven days and six months postoperatively. A detailed history was obtained from each patient preoperatively and six months postoperatively. RESULTS: Preoperatively, patients with rectal intussusception had higher maximum resting pressure (MRP) (52±23 mmHg) than patients with rectal prolapse (34±20 mmHg;P <0.01). In the group of patients with rectal prolapse, there was a postoperative increase in MRP after six months (P <0.001) but not after seven days. Maximum squeeze pressure (MSP) did not increase. Neither MRP nor MSP increased postoperatively in patients with internal rectal procidentia. Continence was improved postoperatively both in patients with rectal prolapse (P <0.01) and rectal intussusception (P <0.01). There was no postoperative increase in rectal emptying difficulties. CONCLUSION: Ripstein's operation often improved anal continence in patients with rectal prolapse and rectal intussusception. This improvement was accompanied by increased MRP in patients with rectal prolapse, indicating recovery of internal anal sphincter function. No postoperative increase in MRP was found in patients with rectal intussusception. This suggests an alternate mechanism of improvement in patients with rectal intussusception.Supported by grants from Kjell and Märta Beijers Stiftelse and Marianne and Marcus Wallenbergs Stiftelse.     

Long-term results of suture rectopexy in patients with fecal incontinence associated with incomplete rectal prolapse

Suture rectopexy is the recommended therapy for complete rectal prolapse that is associated with fecal incontinence. It has been suggested that correction of an incomplete rectal prolapse is also worthwhile for patients with fecal incontinence. PURPOSE: Aims of this study were 1) to evaluate the clinical outcome of suture rectopexy in a consecutive series of patients with incomplete rectal prolapse associated with fecal incontinence, and 2) to compare these results with those obtained from patients with complete rectal prolapse. METHODS: Between 1979 and 1994, suture rectopexy was performed in 13 incontinent patients (3 males; median age, 65 (range, 45–77) years) with incomplete rectal prolapse (Group I) and in 24 incontinent patients (21 females; median age, 71 (range, 24–86) years) with complete rectal prolapse (Group II). RESULTS: After a median follow-up of 67 months, continence was restored in 5 of 13 (38 percent) patients with incomplete rectal prolapse and in 16 of 24 (67 percent) patients with complete rectal prolapse. In both groups, all male patients became continent. CONCLUSIONS: For the majority of incontinent patients with incomplete rectal prolapse, a suture rectopexy is not beneficial. The clinical outcome of this procedure is only good in incontinent patients with complete rectal prolapse. Based on these data, it is questionable whether incomplete rectal prolapse plays a causative role in fecal incontinence.Read at the meeting of the International Society of University Colon and Rectal Surgeons, Lisboa, Portugal, April 14 to 18, 1996.No reprints are available.     

Enterocele is correctable using the Ripstein rectopexy

PURPOSE: About one-third of the patients with rectal prolapse or rectal intussusception have concurrent enterocele at defecography. The purpose of this study was to evaluate the effect of the Ripstein procedure on the concurrent enterocele and to study the outcome of the procedure with respect to the patients' symptoms. METHODS: Twenty-two patients with enterocele and either rectal prolapse or rectal intussusception at defecography were treated using the Ripstein procedure. Postoperatively, the patients were evaluated with clinical examination (22 patients) and defecography (16 patients). RESULTS: None of the patients had recurrence of enterocele, rectal prolapse, or intussusception at postoperative follow-up. Continence was improved in 15 of 16 incontinent patients. Emptying difficulties were unchanged in eight patients, improved in five patients, and had deteriorated in four patients. CONCLUSIONS: Enterocele is corrected by using the Ripstein rectopexy. Persisting defecation difficulties after the Ripstein procedure are unlikely to be secondary to enterocele. The Ripstein procedure can be an alternative in the treatment of enterocele, as a majority of these patients also have rectal prolapse or rectal intussusception.     

What affects continence after anterior resection of the rectum?

Functional results after anterior rectal resections are commonly considered satisfactory but variable percentages of postoperative incontinence are often reported. Continence was evaluated after 20 low anterior resections (LAR) and 13 high anterior resections (HAR) by means of clinical assessment, anorectal manometry, and evacuation proctography. Whereas all HAR patients had perfect continence, 10 patients (50 percent of the LAR group had occasional episodes of soiling from liquid feces, 5 patients (25 percent had frequent soiling or occasional incontinence for solid feces, and 1 patient (5 percent had frequent solid stool loss requiring surgical treatment. Anal canal resting pressure at 3 and 4 cm from the anal verge was significantly lower in the LAR group (P<0.02 and P<0.05, respectively) than in the HAR group. However, the maximum voluntary contraction did not differ between the two groups. Rectoanal inhibitory reflex was found to be present in 17 of the 20 patients with LAR and in all patients with HAR. The volume at which the anal sphincter is continuously inhibited was significantly reduced in the LAR group (P<0.001). Also, the conscious rectal sensibility volumes were found to be significantly reduced for threshold, constant, and maximum tolerated volume. Threshold volume for internal sphincter relaxation was lower than the threshold volume for rectal sensation in some patients with LAR. This could allow postoperative fecal soiling. Rectal compliance was decreased (P<0.001) in the LAR group. Evacuation proctography, performed in six LAR patients affected by major soiling or solid stool loss, revealed an abnormal obtuse anorectal angle and pathologic lowering of the perineum at rest and during defecation. The concomitance of internal anal sphincter impairment, reduction in rectal compliance, and previous pelvic floor muscle damage are postulated as cause affecting continence in patients who underwent LAR.Read at the Congress on Colo-Rectal Disease Milan, Italy, June 29–30, 1989.     

Etiology and management of fecal incontinence

Fecal incontinence is a challenging condition of diverse etiology and devastating psychosocial impact. Multiple mechanisms may be involved in its pathophysiology, such as altered stool consistency and delivery of contents to the rectum, abnormal rectal capacity or compliance, decreased anorectal sensation, and pelvic floor or anal sphincter dysfunction. A detailed clinical history and physical examination are essential. Anorectal manometry, pudendal nerve latency studies, and electromyography are part of the standard primary evaluation. The evaluation of idiopathic fecal incontinence may require tests such as cinedefecography, spinal latencies, and anal mucosal electrosensitivity. These tests permit both objective assessment and focused therapy. Appropriate treatment options include biofeedback and sphincteroplasty. Biofeedback has resulted in 90 percent reduction in episodes of incontinence in over 60 percent of patients. Overlapping anterior sphincteroplasty has been associated with good to excellent results in 70 to 90 percent of patients. The common denominator between the medical and surgical treatment groups is the necessity of pretreatment physiologic assessment. It is the results of these tests that permit optimal therapeutic assignment. For example, pudendal nerve terminal motor latencies (PNTML) are the most important predictor factor of functional outcome. However, even the most experienced examiner's digit cannot assess PNTML. In the absence of pudendal neuropathy, sphincteroplasty is an excellent option. If neuropathy exists, however, then postanal or total pelvic floor repair remain viable surgical options for the treatment of idiopathic fecal incontinence. In the absence of an adequate sphincter muscle, encirclement procedures using synthetic materials or muscle transfer techniques might be considered. Implantation of a stimulating electrode into the gracilis neosphincter and artificial sphincter implantation are other valid alternatives. The final therapeutic option is fecal diversion. This article reviews the current status of the etiology and incidence of incontinence as well as the evaluation and treatment of this disabling condition.     

Rectal compliance in the assessment of patients with fecal incontinence

Rectal compliance (dV/dP) was studied in 31 patients with fecal incontinence, 8 patients with constipation, and 16 control subjects. Patients with fecal incontinence experienced a constant defecation urge at a lower rectal volume and also had a lower maximal tolerable volume and a lower rectal compliance than control subjects (median 126 vs. 155 ml, 170 vs. 220 ml, and 9 vs. 15 ml/mm Hg, respectively;tP <0.05). Constipated patients had a higher constant defecation urge volume and maximal tolerable volume than controls (median, 266 ml and 300 ml;P <0.05). There was no differences in the parameters between patients with idiopathic fecal incontinence and patients with incontinence of traumatic origin, indicating that a poorly compliant rectum in patients with fecal incontinence may be secondary to anal incontinence due to the lack of normal reservoir function.Reprints will not be available.     

Abdominal rectopexy for rectal prolapse

PURPOSE: The aim of this study was to investigate the influence of surgical technique on functional and manovolumetric results in patients treated with Marlex^® mesh abdominal rectopexy. METHODS: The lateral ligaments were completely divided (the Wells procedure) in 16 patients and preserved (the Ripstein procedure) in 16 patients. Clinical and physiologic assessment were performed before and at 3, 6, and 12 months after operation. RESULTS: Improvement of continence was similar. Bowel regulation problems which were unchanged after the Ripstein procedure increased significantly after the Wells procedure (P<0.01). Rectal volume became reduced in the group who received the Wells procedure (225 mlvs. 115 ml, P<0.05 at one year), but remained unchanged after receiving the Ripstein procedure. The pressure thresholds required to elicit sensation of rectal filling and defecation urge were increased after the Wells procedure (15 cm of H₂Ovs. 25 cm of H₂O, P<0.05 and 25 cm of H₂O vs. 45 cm of H₂O, P<0.05, respectively). In the Ripstein group there was only a slight increase of the threshold for urge (P<0.05). CONCLUSION: The Wells procedure was followed by severe rectal dysfunction accompanied by increased constipation and evacuation problems. The Ripstein procedure, preserving the lateral ligaments, appears not to affect such symptoms adversely. On the other hand, improvement is not likely to occur.Supported by grants from the Swedish Medical Research Council (17X-03117), University of Gothenburg, Gothenburg Medical Society, and Assar Gabrielsson's Fund.     

Is fecal continence improved by nonstimulated gracilis muscle transposition?

PURPOSE: Gracilis muscle transposition for treatment of fecal incontinence gives variable results. Electric stimulation of transposed muscle recently brought this technique to the surface. METHODS: We reviewed patients who had gracilis muscle transposition for fecal incontinence to determine who might benefit from electrostimulation. RESULTS: Between 1979 and 1991, 22 patients underwent gracilis muscle transposition. At six months, 18 patients had improved continence, but 12 of the 18 were stable with time, and only 1 was fully continent. Six patients were candidates for electrostimulation; four had a contractile but fatigable transposed muscle, and two had ineffective transposed muscle with a gaping nonfibrotic anus. CONCLUSION: Gracilis muscle transposition should be used first for severe incontinent patients, and electrostimulation should be used if there are unsatisfactory results.     

Combined anorectal manometry and defecography in 50 consecutive adults with fecal incontinence

Fifty consecutive patients presenting with fecal incontinence were evaluated prospectively with anorectal manometry, defecography, and other tests of anorectal function to assess the clinical utility of defecography in fecal incontinence. Leakage of contrast at rest and failure to narrow the anorectal angle with pelvic squeezing were specific but not sensitive predictors of decreased sphincter pressures as determined by manometry. Thus, after manometry, defecography provided no additional information regarding sphincter strength. Retention of contrast in large rectoceles or incomplete rectal evacuation at defecography had excellent correlation with the presence of clinical symptoms of outlet obstruction constipation (present concurrently with incontinence) and indicated an etiology of outlet obstruction symptoms. Defecography may provide useful information in incontinent patients with outlet obstruction constipation symptoms but has little additive value to anorectal manometry in incontinent patients without such symptoms.     

Anal encirclement with polypropylene mesh for rectal prolapse and incontinence

Seventeen selected patients (mean age, 74 years)—14 with rectal prolapse and 3 with persisting anal incontinence after previous operations—underwent high anal encirclement with polypropylene mesh. There was no operative mortality. Prolapse recurred in 2 (15 percent) of the 13 patients followed up for 6 months or more (mean, 3.5 years). Three (27 percent) of the 11 patients with associated anal incontinence improved functionally, as did the three operated on for persisting incontinence, but only one patient regained normal continence. No breakage, cutting out, or infection related to the mesh was observed. Because of the risk of fecal impaction encountered in three of our patients, the procedure is not advocated for severely constipated patients. Despite the somewhat disappointing results regarding restoration of continence, we find this method useful in patients with rectal prolapse who are unfit for more extensive surgery, in controlling the prolapse to an acceptable degree.     

Clinical value of colonic irrigation in patients with continence disturbances

Continence disturbances, especially fecal soiling, are difficult to treat. Irrigation of the distal part of the large bowel might be considered as a nonsurgical alternative for patients with impaired continence. PURPOSE: This study is aimed at evaluating the clinical value of colonic irrigation. METHODS: Thirty-two patients (16 females; median age, 47 (range, 23–72) years) were offered colonic irrigation on an ambulatory basis. Sixteen patients suffered from fecal soiling (Group I), whereas the other 16 patients were treated for fecal incontinence (Group II). Patients were instructed by enterostomal therapists how to use a conventional colostomy irrigation set to obtain sufficient irrigation of the distal part of their large bowel. Patients with continence disturbances during the daytime were instructed to introduce 500 to 1,000 ml of warm (38°C) water within 5 to 10 minutes after they passed their first stool. In addition, they were advised to wait until the urge to defecate was felt. Patients with soiling during overnight sleep were advised to irrigate during the evening. To determine clinical outcome, a detailed questionnaire was used. RESULTS: Median duration of follow-up was 18 months. Ten patients discontinued irrigation within the first month of treatment. Symptoms resolved completely in two patients. They believed that there was no need to continue treatment any longer. Irrigation had no effect in two patients. Despite the fact that symptoms resolved, six patients discontinued treatment because they experienced pain (n=2) or they considered the irrigation to be too time-consuming (n=4). Twenty-two patients are still performing irrigations. Most patients irrigated the colon in the morning after the first stool was passed. Time needed for washout varied between 10 and 90 minutes. Frequency of irrigations varied from two times per day to two times per week. In Group I, irrigation was found to be beneficial in 92 percent of patients, whereas 60 percent of patients in Group II considered the treatment as a major improvement to the quality of their lives. If patients who discontinued treatment because of washout-related problems are included in the assessment of final outcome, the success rate is 79 and 38 percent respectively. CONCLUSIONS: Patients with fecal soiling benefit more from colonic irrigation than patients with incontinence for liquid or solid stools. If creation of a stoma is considered, especially in patients with intractable and disabling soiling, it might be worthwhile to treat these patients first by colonic irrigation.Read at the meeting of the International Society of University Colon and Rectal Surgeons, Lisbon, Portugal, April 14 to 18, 1996. No reprints are available.     

Abdominal rectopexy for complete prolapse: Prospective study evaluating changes in symptoms and anorectal function

The effect of abdominal rectopexy on bowel function is difficult to assess in retrospective studies because preoperative bowel habit cannot be determined accurately. This study examined bowel symptoms and physiologic tests of anorectal function prospectively in 23 patients before and at three months after rectopexy. Rectopexy eliminated complete prolapse in all and stopped bleeding in 16 of 18 patients. Incontinence improved significantly. Constipation (<3 bowel actions per week or straining for more than 25 percent of defecation time) was relieved in 4 of 11 affected patients but developed in 5 of the 12 who were not constipated preoperatively. Since the median bowel frequency was 21 motions per week before surgery and 17 afterward, the main determinant of constipation was straining. Abdominal pain was relieved after rectopexy in 6 of 12 patients but developed in 3 of 13 who were pain-free before surgery. Three patients (13 percent) had a first-degree relative with rectal prolapse. Perineal descent decreased significantly. Maximal anal resting pressure increased significantly, but this did not correlate significantly with improved continence. Twenty-one patients (91 percent) could expel a 50-ml balloon preoperatively; 18 of those 21 could still do so postoperatively. The two patients who could not expel the balloon preoperatively were able to do so postoperatively. This study shows that rectal prolapse is associated with profoundly abnormal defecation and abdominal pain. While abdominal rectopexy improved continence, it may improve or worsen other bowel symptoms, including constipation.Support for this study was received from the Imperial Cancer Research Fund, ICI Pharmaceuticals (SA) Ltd., the St. Mark's Research Foundation, and the Medical Research Council of South Africa.     

Relationship between anal canal tone and rectal motor activity

The anal sphincters facilitate fecal continence by maintaining a pressure barrier; whether proximal contractile events influence this barrier is unknown. The aim of this study was to determine whether a relationship exists between anal canal pressures and rectal motor activity. A fully ambulatory system for prolonged pressure recording was developed. In 12 healthy subjects (seven males and five females; mean age, 35 years; range, 22–43 years), a flexible transducer catheter (outside diameter, 4.5 mm) was introduced endoscopically such that sensors were 2, 3, 8, 12, 18, and 24 cm from the anal orifice. Twenty-four-hour spontaneous motor activity was stored in a 2.5-megabyte portable recorder for later transfer to a Microvax II for computerized analysis and display. Mean anal canal pressure was calculated, and rectal motor complexes (RMCs) were characterized. Mean anal canal resting pressure was 75±12 mmHg. During sleep, anal pressures displayed cyclic decreases (mean periodicity, 1.6 hours; range, 1–4 hours), during which the mean ±SD pressure trough was 15±4 mmHg (range, 8–21 mmHg). RMCs were identified in all subjects: mean frequency, 16 per 24 hours (range, 12–22 per 24 hours); duration, 15.3 minutes (range, 8–35 minutes); contractile frequency, two to three per minute; mean peak amplitudes, 58±18 mmHg; and periodicity, 78±24 minutes (range, 35–265 minutes). Importantly, an RMC was invariably accompanied by a rise in mean anal canal pressure and contractile activity such that pressure in the anal canal was always greater than pressure in the rectum. Anal canal relaxations never occurred during an RMC. Motor activities of the rectum and of the anal canal may be related; the onset of rectal contractions was accompanied by increased resting pressure and contractile activity of the anal canal. This temporal relationship represents an important mechanism preserving fecal continence.Read at the meeting of The American Society of Colon and Rectal Surgeons, Boston, Massachusetts, May 12 to 17, 1991.     

Transanal electrostimulation for fecal incontinence: Clinical,psychologic, and manometric prospective study

A prospective study was carried out to analyze the clinical, psychologic, and manometric short-term results of transanal electrostimulation (TES) in the treatment of fecal incontinence. Fifteen patients underwent TES. An initial clinical and manometric assessment was carried out before and 1 month after the procedure. A psychologic evaluation was also performed by means of interviews and appropriate tests. Early improvement of symptoms was noted in 10 patients. The nonresponders were women with gross daily incontinence to solid stool. At anal manometry, resting tone and rectal sensation remained unchanged, whereas a significant increase of voluntary contraction was observed following TES (from 48 ±26 to 59±39 mm Hg,P=0.03). Psychologically, TES led to a significant decrease of both latent and paranoid anxiety related to symptoms (P=0.02). At a clinical reassessment 6 months later, one of the nonresponders became continent after a further course of TES. In conclusion, TES is well accepted by the patients, is followed by positive emotional response, and, by improving striated sphincter function, seems to be effective in the treatment of partial fecal incontinence.     

Effect of rectal dilation in fecal incontinence with low rectal compliance

PURPOSE: This study was undertaken to determine the effect of rectal dilation in a patient with urge-type fecal incontinence and frequent bowel movements associated with low rectal compliance and capacity. METHOD: Daily rectal balloon dilation was performed for a period of four weeks. RESULTS: The patient regained complete fecal continence with one to two daily bowel movements. Rectal compliance, capacity, and cross-sectional area increased by 37 to 136 percent. Nine months later the patient was still without symptoms. CONCLUSION: Rectal balloon dilation may be a therapeutic alternative in selected patients.     

Wide resection and reconstruction preserving fecal continence in recurrent anal cancer

PURPOSE: A new operation was developed to treat patients with local recurrence of cancer at the anal margin after radiotherapy. This operation aims at resection of the tumor with oncologically safe margins, preservation of fecal continence, and reliable wound healing. METHODS: After intensive radiotherapy, three patients with local recurrences of squamous-cell carcinoma of the anus refused to undergo abdominoperineal resection. These patients were treated by wide local excision and primary reconstruction. Wide local excision included perianal skin with subcutis and the anal canal including the internal sphincter up to the dentate line. To reconstruct the anus, the rectum was mobilized and brought down to the level of the perineum through the external sphincter and anastomosed to bilateral biceps femoris myocutaneous flaps. RESULTS: In the first three patients no tumor recurrences have occurred, and fecal continence has been good. CONCLUSION: The first results with this continence-preserving operation in patients with recurrent anal margin cancers after radiotherapy have been encouraging.     

Bilateral gluteoplasty for fecal incontinence

PURPOSE: This study describes our clinical experience with adynamic bilateral gluteoplasty in 20 patients with total fecal incontinence, in whom a sphincter repair had failed (n=17) or was nonviable. METHODS: Between 1986 and 1995, 12 women and 8 men ranging in age from 15 to 58 (mean, 37) years underwent different techniques of adynamic gluteoplasty. The indications for the operation were congenital anomalies, denervation, or sphincter destruction. Postoperative evaluation was clinical (Pescatori grading; self-evaluation) and manometric. RESULTS: Morbidity was only related to wound infection (n=7) requiring late reoperations for neosphincter repair (n=5), anal stenosis (n=2), and incisional hernia after colostomy closure (n= 1). Two other patients with no complications also had further surgery for tightening of the neosphincter; they had a successful outcome. Of the 17 evaluable patients, 9 (53 percent) achieved normal control or were graded as Pescatori A-1, A-2, B-1, or C-1, 1 (6 percent) as Pescatori C-2, and 7 (41 percent) as Pescatori C-3. Six patients (35 percent) judged their results as excellent, three (18 percent) as good, one (6 percent) as fair, and seven (41 percent) as bad. Eight patients are able to retain 200 ml of water instilled into the rectum for between five minutes and two hours. For the nine patients with better results, the mean ± standard deviation of the differences between postgluteoplasty and pregluteoplasty anal pressures were 40±25 mmHg (resting pressure) and 122±85 mmHg (squeeze pressure). These findings demonstrate a tonic and voluntary activity of the plasty. The author's technique has less morbidity, and excellent or good results were achieved in 67 percent of the patients. Failures were attributable to suture disruption (n=4), poor muscular contraction (n=2), and intractable constipation (n=1). CONCLUSIONS: Adynamic gluteoplasty is efficient for achieving good or very good continence status in a higher proportion of patients than with other adynamic muscle transfer procedures.Read at the meeting of The American Society of Colon and Rectal Surgeons, Seattle, Washington, June 9 to 14, 1996.     

Long-term results of total pelvic floor repair for postobstetric fecal incontinence

PURPOSE: This study was designed to assess the long-term results of total pelvic floor repair for postobstetric neuropathic fecal incontinence. METHOD: Sixty-three of 75 women who had undergone total pelvic floor repair for postobstetric neuropathic fecal incontinence were traced and interviewed a median of 36 (18–78) months after surgery. Thirty-nine patients agreed to repeat anorectal physiology. RESULTS: Six patients required further surgery for persistent incontinence (colostomy, 4; graciloplasty, 2). For the remaining 57 patients, incontinence improved greatly in 28 (49 percent) patients, mildly in 13 (23 percent), and not at all in 16 (28 percent); daily incontinence was present in 41 patients (73 percent) before the operation but persisted in 13 (23 percent). Only eight (14 percent) patients were rendered completely continent; those with marked improvement were socially more active than those with little or no improvement. Resting and maximum squeeze pressures, anal canal sensation, rectal sensation, and pudendal nerve terminal motor latency did not predict outcome. Perineal descent, obesity, and a history of straining before the operation were all associated with a poor outcome. CONCLUSION: Total pelvic floor repair rarely renders patients with postobstetric neuropathic fecal incontinence completely continent but substantially improves continence and lifestyle in approximately one-half of them. The operation is less successful in obese patients and in those with a history of straining or perineal descent.Read at the meeting of The American Society of Colon and Rectal Surgeons, Seattle, Washington, June 9 to 14, 1996.