Advances in the diagnosis and treatment of intersphincteric resection for ultra-low rectal carcinoma / 国际外科学杂志

ABSTRACT

It has been 20 years since Intersphincteric resection(ISR) was used as a supplement to Abdominoperineal resection(APR) for ultra-low rectal cancer. With the help of removing conjointed longitudinal muscle and total or partial internal sphincter, R0 resection is achieved under the condition of preserving external sphincter, levator ani muscle, and part of internal sphincter, thereby retaining part of the anal function. This article reviews the indications, anatomy, physiology and treatment outcomes of ISR.