METHOD OF FORMING RETROPERITONEAL COLOSTOMY Russian patent published in 2024 - IPC A61B17/00 A61F5/445 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to surgery and coloproctology, and can be used for forming a retroperitoneal single-barrelled colostomy. Preoperative marking of the colostomy place on the skin of the anterior abdominal wall is performed. Descending colon is mobilized. Sigmoid colon is mobilized and, at least 10 cm in the proximal direction along mesenteric edge from the pathological focus, is transected at angle of 60° up to 75° to the resected mesenteric edge. Sigmoid colon diameter is measured. Retroperitoneal canal is formed. Rounded skin area is excised at the stoma removal point with the size corresponding to the diameter of the excreted sigmoid colon. Subcutaneous fat is separated by a blunt and an acute path. Anterior leaf of the rectus sheath is dissected from the left by three converging to each other at angle of 120° incisions, the length of each of which is equal to the radius of the derived sigmoid colon. Fibres of the rectus abdominis muscle are detached. Sigmoid colon through the formed retroperitoneal canal is brought to the surface of the skin of the anterior abdominal wall without tension, without axial rotation, with excess so that the mesenteric edge of the "column" of its tissue with height of not less than 1.5 cm is located above the surface of the skin area in the place of stoma removal and faces the caudal end of the patient's body. Colostomy is fixed to the skin with interrupted sutures.

EFFECT: method is effective, enables to exclude the development of postoperative paracolostomy complications and thereby to improve the quality of life of stoma patients.

1 cl, 3 ex