Evaluation of Magnetic Resonance Imaging (MRI) Findings following posterior Sagital Ano-Recto Plasty (PSARP) in Severe Incontinent Children with High Imperforate Anus (IA)

Background: The aim of this study was to evaluate pelvic MRI accuracy for measurement of anatomical land marks in severe fecal incontinent (FI) children with high imperforate anus (IA).Materials and Methods: A total of 80 children (40 cases and 40 controls) aged more than 4 years with severe FI were assessed. Magnetic resonance imaging was performed by a radiologist with the same device. For pelvic anatomical land marks measurement, we measured the ano-rectal angel and hiatal/pc ratio.Results: The mean of ano-rectal angel was 118.67 ± 25.2 mm in cases and 132.07 ± 13.8 mm in control group (P = .004). H/PCR was 0.63 ± 0.05 in cases and 0.62 ± 0.45 in controls (P = NS). There was no significant correlation between [INSIDE:1] (r = 0.25, P = 0.36) or ano-rectal angle measurement (r = 0.16, P = 0.05) and FI score in patients with severe FI.Conclusions: Pelvic magnetic resonance imaging could be accurately used is measuring the ano-rectal angle is high IA children with severe FI which leads to selected patients who may have benefits of reoperation.