House advancement flap anoplasty for severe post-hemorrhoidectomy anal stenosis - a video vignette.

Anal stenosis (AS) is rare but a severe complication of anal surgery. Most often it develops after hemorrhoidectomy [1, 2]. Depending on the grade of stenosis it may be mild, moderate or severe. Most of the severe type stenosis require surgical anoplasty. There are several commonly used flap types such as Y-V, V-Y, lateral, diamond-shaped and house-type flaps [3]. Previous studies have shown a success rate of House flap of up to 90% [4].