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Results of the management of ureteric stones with the ureterorenoscope.

Eighty ureterorenoscopies (URS) were performed for stone removal in 67 patients between January 1985 and April 1988. The success rates for stone removal were 54% in the lower third of the ureter, 70% in the middle third, 38% in the upper third, and 33% in the renal pelvis. The overall success rate was 42%. Open ureterolithotomy was performed after failed ureteroscopy nine times. There were two perforations of the ureter: one by the hook of the forceps and the other by the dormia basket. No significant late complications occurred in 51 patients after six to 36 months postoperatively. At the moment ureteroscopy is of value particularly in the treatment of lower or middle ureteric stones.