Defects on endoanal ultrasound and anal incontinence after primary repair of fourth‐degree anal sphincter rupture: a study of the anal sphincter complex and puborectal muscle

Abstract

In a 1-9-year follow-up period after primary suture of fourth-degree ASR, the frequency of AI was high, at 67%. No clear association was seen between AI and sphincter defects detected on ultrasonography. There was an association between the angle of the PRM and the extent of ultrasound defects.