Day care surgery can be done in

.* Lateral anal sphincterotomy - Here internal sphincter is divided paially away from the fissure either in right or left lateral positions (also gives a good result). - Here closed or open methods (Notaras) are used. Sphincterotomy is done below the dentate line. In closed method no 11 blade is inseed into the intersphincteric groove to pass upwards. Blade is moved medially to cut lower 1/3 or 1/2 of the internal sphincter. In open method skin is incised laterally, external to anal verge. Hyperophied band of lower pa of internal sphincter is dissected and divided. Wound is left open. - Haematoma, perianal abscess, bruising, fistula, incontinence are the complications of lateral sphincterotomy. ref:SRB&;s manual of surgery,ed 3,pg no 913