IRCT201301073156N2 IRCT 2013-01-18 Department of Research and Technology Assignment and comparation of the effectiveness of two methods‟ Vertical mattress suture and Tie-over” surgical treatment for pilonidal patients Assignment and comparation of the effectiveness of two methods‟ Vertical mattress suture and Tie-over” surgical treatment for pilonidal patients 2012-06-21 anticipated 70 Complete https://irct.ir/trial/3207 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 1 Pilonidal. Intervention 1: a group fix with a VMS method . Techniques VMS: After removing , the skin and under the skin flap on the side of the lesion with less tissue removed. It is repaired with karydakys principles in the area lateral to the midline Then it is repaired using zero nylon fabric and is made to get total tissue and pre-sacral fascia. The sutures distention is about one centimeter. Intervention 2: the other group fix with TO method . Techniques TO: After removing , the skin and under the skin flap on the side of the lesion with less tissue removed. It is repaired with karydakys principles in the area lateral to the midline . Then the cutaneous and subcutaneous is restored separately using the two zero nylon suture. The wound is made with three sutures that include together cutaneous , subcutaneous and pre-sacral fascia with zero nylon And inserting the following two gas tube and stitches it took to close.