Observational studyTechniques in coloproctology2026
Comparative study between partial and complete lateral anal sphincterotomy in treatment of chronic anal fissure and its effect on fecal incontinence.
Observational study in Techniques in coloproctology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
backgroundChronic anal fissure is a painful condition that can greatly affect quality of life. When conservative treatment fails, lateral internal anal sphincterotomy is performed to promote healing. The procedure may involve partial or complete sphincter division, which can influence the risk of fecal incontinence. This study aimed to compare the outcomes of tailoring the length of the lateral internal anal sphincter with either the whole length or the fissure apex and their effect on fecal continence in the treatment of chronic anal fissure.
methodsThis comparative, prospective, observational study included 40 adults with chronic anal fissures that did not improve with medical treatment. Patients were divided into two equal groups on the basis of the type of sphincterotomy performed: full-length sphincterotomy or sphincterotomy limited to the fissure apex. Patient details and postoperative outcomes were closely monitored, with follow-up visits conducted over 1 month to assess recovery and complications.
resultsThe present study revealed significant differences between the studied groups in terms of postoperative pain and bleeding occurrence (P < 0.001). Postoperative pain was significantly higher among patients who underwent complete sphincterotomy (70%) compared with those who underwent partial sphincterotomy (20%). Similarly, bleeding was significantly more common in the complete sphincterotomy group (55%) than in the partial sphincterotomy group (25%).
conclusionsPartial lateral internal anal sphincterotomy appears to offer a balance between fissure healing and continence preservation, making it a preferable option for patients at higher risk of incontinence.
trial registrationNot applicable.
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