Open surgery involves the surgeon creating a long incision to open the abdomen and operating with "traditional” medical instruments. Laparoscopic, or minimally invasive, surgery is an approach that allows the surgeon to perform the same procedure using several small incisions, a fiber-optic camera, video monitor, and long-handled instruments as well as why your surgeon may recommend a minimally invasive technique but switch to an open one.
The gallbladder concentrates and stores bile as a pear-shaped sac which it can release to help digestion after a fatty meal.