What is pyelolithectomy?

Pyelolithotomy is a surgical procedure used to remove kidney stones (calculi) from the renal pelvis, the part of the kidney that collects urine before it moves to the bladder. This operation is typically performed when stones are too large to be passed naturally or when other treatments, like shock wave lithotripsy, fail. The procedure involves making an incision in the flank or back to access the kidney directly. It is often considered when other less invasive methods are not suitable or effective.