Stone Recurrences in Kidneys Made Stone-Free by Percutaneous Extraction

Abstract

Of 100 renal units which were made stone-free by percutaneous stone extraction in 1985, 86 (86.0%) were re-examined radiologically up to 5 years after operation. The re-examination was performed because of symptoms or as part of a regular check-up or after calling the patient. Intrarenal calcifications were diagnosed in 27 of 86 (31.4%) of the renal units, but only in 11 (12.8%) were there stones requiring treatment.