Colonic PouchesProctocolectomy, RestorativeSurgical StaplingAnastomosis, SurgicalIleostomyUltrasonic Surgical ProceduresColitis, UlcerativeAdenomatous Polyposis ColiPouchitisAnal CanalIleitisIleumPostoperative ComplicationsArteriovenous AnastomosisColectomyDefecationRectumIntestinal MucosaFecal IncontinenceCheekSurgical StaplersAnastomosis, Roux-en-YTreatment Outcome