Incontinence after fistulotomy in low anal fistula: Can Kegel exercises help improve postoperative incontinence?

Abstract

AimFistulotomy is the commonest procedure performed for low anal fistulas. The incidence of gas and urge incontinence after fistulotomy and whether Kegel exercises (KE) could help recover sphincter function after fistulotomy has not been studied before. Methods Patients operated by fistulotomy for low fistulas were recommended KE (pelvic contraction exercises) 50 times/day for one year postoperatively. Incontinence (solid, liquid, gas and urge) was evaluated objectively (Vaizeys scores) preoperatively [Pre-op Group], in the immediate postoperative period [Pre-KE Group] and at 6-months follow-up [Post-KE Group]. Incontinence scores in all three groups were compared to evaluate the efficacy of KE. Results101 MRI-documented low anal-fistula patients were included. There were 79 males (mean age 39.412.9 years) and median follow-up was 12 months (6-18months). Two patients were lost to follow-up. Fistulas healed in all the patients. Incontinence was present in 5/99 patients (mean incontinence scores-0.130.63) preoperatively and occurred in 20/99 (mean incontinence scores-1.032.18) patients postoperatively (Pre-KE Group). With KE, the incontinence improved completely in 10 and partially improved in other 10 (mean incontinence scores-0.311.09). Urge and gas incontinence accounted for most cases (80%). The mean incontinence scores deteriorated significantly after fistulotomy (pre-op vs pre-KE, p=0.000059, significant) but continence improved significantly with KE, thus the scores between pre-op and post-KE became comparable (pre-op vs post-KE, p=0.07, not significant).ConclusionsFistulotomy, even in low fistulas, can lead to significant increase in gas and urge incontinence. Regular Kegel exercises postoperatively can help recover lost sphincter function and can bring back continence comparable to preoperative levels.