Percutaneous microexplosion nephrolithotripsy.

We developed the technique of microexplosion for the destruction of bladder stones and have used it since 1981 with good results. The procedure is safe and simple. A renal pelvic stone in a seventy-one-year-old woman was successfully destroyed by microexplosion using a percutaneous approach. We believe this is the first clinical report on the use of microexplosion for upper urinary tract calculi.