Renal anatomical factors for the lower calyceal stone formation

International Urology and Nephrology
A Serdar GozenHakan Akdere

Abstract

The pathogenesis of urolithiasis is mainly explained with metabolic disorders. However metabolic disorders alone are not sufficient to explain this pathology. In the present study the anatomical differences in the lower calyceal stone formers were examined on both the stone forming and contralateral normal side. The objective was to assess the effect of lower pole renal anatomy on the lower calyceal stone formation. Between July 1999 and July 2004 39 patients with non-obstructed solitary lower pole stones were studied. Mean age was 47.02 years. The anatomic factors were determined on intravenous urograms (IVU). The renal length and width and the number of major and minor calices were noted. Lower pole infundibular calyceal length (ICL) and width (IW), lower infundibular length-to-width ratio were measured. The infundibulo-ureteropelvic angle (IUPA) was measured by two methods using the angle between infundibular and ureteral axes (IUPA-1), and between infundibular and ureteropelvic axes (IUPA-2). We examined a new parameter: Renal longitudinal axis-infundibulum angle (RIA) for renal stone formation. RIA was determined between two axes, including the axis connecting the central point of the pelvis opposite the margins of inferio...Continue Reading

References

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Dec 23, 1999·Journal of Endourology·P S ChandhokeT Yagisawa
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Citations

Sep 26, 2007·Urologia Internationalis·P FerrariG Ferrari
Nov 9, 2011·Clinical Nuclear Medicine·Kianoush Ansari-GilaniJamak Modaresi Esfeh

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