NOTE: The thicknesses for backing flanges noted in the tables are applicable to. steel. Different metals demand different thicknesses for the same performance, so for. metals other than steel, consideration must be given to thickness. Although Tables 4, 5, 6 and 7 in these guidelines make reference to pressure ratings.
Big difference : A subtotal colectomy is removing almost all the colon; usually just a couple of inches are left near the rectum. A partial colectomy is not done AFTER a subtotal colectomy because there is basically no colon left.
A colon resection, also known as a colectomy, is the surgical removal (resection) of a part or all of the large intestine (colon). The large intestine consists of five main sections: the ascending colon, transverse colon, descending colon, and the sigmoid colon, ending with the rectum.