[Variant of the descent operation with preservation of the sphincter in cancer of the distal end of the rectum].

A new variant of the operation for cancer of the rectum with a partial preservation of the natural function of the obturator apparatus is suggested. The method consists in the keeping of the anal constrictor muscular ring, the vascularization and innervation of which are brought about by preservation of two portions of the muscles rising the anus. The operation carried out upon 7 patients has shown fair immediate and early results.