Introduction: Acquired skin-level strictures following posterior sagittal anorectoplasty (PSARP) and some rare cases of congenital anal stenosis can be managed using a Heineke-Mikulicz like anoplasty (HMA). We hypothesized that this procedure was an effective, safe, and durable outpatient procedure in select patients.
Methods: We retrospectively reviewed all patients who underwent HMA for skin level strictures following PSARP or for certain congenital anal stenoses from 2014 to 2017.
Results: Twenty-eight patients (19 males, 9 females) with a mean age of 5.8 years (range 0.5-24.4) underwent HMA. Twenty-six had a prior PSARP, of which 18 were redo, and 8 were primary procedures. Two patients had congenital skin level anal stenosis. The mean follow up was 1.0 years (range 0.4-2.9). The average preprocedure anal size was Hegar 8, which after HMA increased 8 Hegar sizes to 16 (95% CI 7-9, p < 0.001). There were no operative complications. One patient restenosed and required a secondary procedure.
Conclusion: HMA is a safe procedure for skin-level anal strictures following PSARP (primary and redo) and can also be used in some rare cases of congenital anal stenosis. Long-term follow up to determine the restricture rate is ongoing. A plan to do an HMA if a stricture develops may offer an alternative to routine anal dilations, particularly after a redo PSARP in an older child.
Type of study: Case series.
Level of evidence: Level IV.
Keywords: Anal stricture; Anoplasty; Anorectal malformation; Congenital anal stenosis; Heineke–Mikulicz; Posterior sagittal anorectoplasty; Stricturoplasty.
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