. Modern surgery, general and operative. Obstruction by Adhe-sions (Fig. 689).—Adhesions result from previous peritonitis. There may bea few adhesions or a multitude of them. A portion of bowel may be bent ortwisted by the traction of adhesions or gaseous movement may twist a coil orbend it above an adhesion. The obstruction may be acute or chronic. Evenwhen acute, strangulation is unusual. Volvulus (Fig 690).—By this term we mean twisting of a loop of bowel uponits mesenteric axis. It is true that under peculiar circumstances the bowel maytwist on its own long axis because of adhesions, but s
. Modern surgery, general and operative. Obstruction by Adhe-sions (Fig. 689).—Adhesions result from previous peritonitis. There may bea few adhesions or a multitude of them. A portion of bowel may be bent ortwisted by the traction of adhesions or gaseous movement may twist a coil orbend it above an adhesion. The obstruction may be acute or chronic. Evenwhen acute, strangulation is unusual. Volvulus (Fig 690).—By this term we mean twisting of a loop of bowel uponits mesenteric axis. It is true that under peculiar circumstances the bowel maytwist on its own long axis because of adhesions, but such a twist is not a truevolvulus. Fifteen per cent, of acute obstructions are due to volvulus (Briggs,Ohio State Med. Jour. Nov., 1912). Volvulus may occur in a hernial rare cases two coils of intestine twist together. It is not limited to the pel-vic colon, but, in a very large majority of cases, it is this portion of bowel whichsuffers. The t^vist may be partial, a complete turn, or even two or three complete Volvulus III3.
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