👉 The process of removing a kidney stone by cutting or breaking through the wall of the kidney's ureter. This can be done with an instrument called a lithotomy, which is used to remove stones in the urinary system. The procedure is often performed under general anesthesia and involves several steps including preparing the patient for surgery, making a hole in the surface of the kidney, then using tools like a lithotomy or other instruments to cut through the wall and remove the stone.