There are 2 surgical approaches in hernia repair surgery: the open and the laparoscopic one. An approach is called open, when the surgeon makes a single incision near the location of the hernia, dissects the surrounding tissues and repairs the hernia under direct vision.
In general, we call the largest areas of land on earth the continents of the earth.
The largest areas on Earth that fit this definition are the polar regions. Antarctica has a surface area of about 14 million square kilometers (5.5 million square miles), making it the largest desert in the world. But we are looking for sand dune type deserts and sand covers only about 20 percent of World's deserts.