[Clinical research of improved plastic and reconstruction of anus in situ].

Objective: To explore the effect of the improved plastic and reconstruction of the anus in situ.

Methods: Improved plastic and reconstruction of anus in situ was performed in 38 cases of low rectal cancers operated while Miles radical operation. Improvement includes: (1) The internal sphincter was rebuilt with 4 layers of muscle layer of the endmost of colon.