What surgical procedure is commonly indicated for patients with severe gallstones?

The surgical procedure commonly indicated for patients with severe gallstones is cholecystectomy. This procedure involves the surgical removal of the gallbladder, which is often necessary when gallstones cause significant symptoms such as pain, inflammation, or complications like pancreatitis or cholecystitis.

Gallstones can obstruct the bile duct and lead to various complications, prompting the need for intervention. Cholecystectomy is typically performed laparoscopically, which minimizes recovery time and reduces the risk of infection compared to open surgery.

The other listed procedures are unrelated to gallstones. An appendectomy is the removal of the appendix, a splenectomy involves the removal of the spleen, and an adenoidectomy is the removal of the adenoids. Therefore, these options do not address the condition of gallstones or their associated complications.