V.N. Demchenko, A.A. Altukhov, D.V. Schukin

Study of the lower renal cup anatomy using multispiral computed tomography in relation to the problems of ureterocalicostomy

The possibilities for performing ureterocalicostomy significantly depend on the anatomy of the lower group of cups, which has not been examined yet from the point of view of this operation.

The study included 115 patients who underwent multispiral computed tomography for various indications.

The number of small cups of the lower group ranged from 1 to 5 (2.5 on average). We identified four main options for localizing renal cups in the region of the lower pole: I - one of the cups is localized in front, and the second along the vertical axis of the kidney (n = 13 / 11.3%); II - one of the cups is localized in front, and the second in the back (n = 35 / 30.4%); III - there is only one cup suitable for ureterocalicostomy, located along the vertical axis of the kidney (n = 18 / 15.7%); IV - one of the cups is localized at the back, and the second along the vertical axis of the kidney (n = 49 / 42.6%). The probability of damage to two cups with transverse resection of the kidney is 29.6%, while with oblique resection of kidney it is 12.2%.

Information about the number of renal cups in the lower group and their spatial localization plays an important role in planning ureterocalicostomy. The proposed anatomical classification of cup anatomy allows choosing the type of renal resection in a particular patient and avoiding damage to adjacent cup structures.