Pattern of anatomic disorder and surgical management of anorectal prolapse in anorectal malformation.

Our study shows that ARM-related anorectal prolapse is associated with excessive rectum, hyperplasia of rectal fat, mobile mesorectum, loose muscular tunnel, LM discontinuity, and anal mislocation. Surgical repair with techniques stratified according to the patients' underlying risk factors is effective to prevent recurrence and improve the soiling continence.