Outcome of overlapping anal sphincter repair after 3 months and after a mean of 80 months
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The aim of this study was to determine the functional results of anal sphincter repair after a long follow-up (mean 80.1 months).
In the period 1990–2002, 65 sphincter repairs were performed. Obstetric trauma was the cause of incontinence in 72.3% cases, fistulotomy in 13.8%, nonspecific trauma in 9.2%, and war injury in 4.6%. At the time of surgery, 12 patients had undergone an urgent stoma procedure. In all cases, anal manometry, electromyography, and defecography were performed. The severity of incontinence was evaluated preoperatively using the Wexner score system. Anterior sphincteroplasty was performed in 52 cases, lateral in 9 cases, and posterior in 4 cases.
The results were determined according to the Wexner score system and the Browning–Parks scale. The Wexner score was calculated 3 months after operation and during every follow-up visit. Preoperative scores and those at the first and last follow-up visits were analyzed. Three months after operation excellent results were achieved in 55.5%, good in 18.5%, fair in 16.9%, and poor in 9.2% patients. After follow-up (mean 80.1 months), 26.8% had excellent results, 21.4% had good results, 12.5% had fair results, and 39.3% of patients had a poor outcome. Results determined by the Wexner score system improved from 17.8 preoperatively to 3.6 three months after operation, but deteriorated over time to 6.3 after longer follow-up (p<0.001).
Overlapping sphincter repair provides satisfactory results in more than two-thirds of patients initially, but the results tend to worsen over time and are satisfactory in half of patients after longer follow-up.
KeywordsFecal incontinence Sphincter repair Quality of life
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