To compare operative time, safety, and effectiveness of percutaneous nephrolithotomy in the supine versus prone position in a prospective randomized trial.
Material and methods
From October 2005 to June 2007, 75 patients (33 men, 42 women; mean age, 39.3 yr) were prospectively enrolled and randomly divided into group A (39 patients, supine position) and group B (36 patients, prone position). Inclusion criteria were diagnosis of single or multiple renal stones (pelvic-caliceal) treatable with a single percutaneous access, stone diameter >2.5
The two groups were comparable in age, BMI, male-to-female ratio, and stone size. No significant difference was ascertained between the two groups in terms of stone-free rate (group A, 88.7% vs. group B, 91.6%, p
In this carefully selected patient population with uncomplicated renal stones, the supine position was similar to the prone position for percutaneous stone removal.
Keywords: Percutaneous nephrolithotomy, Renal stones, Supine position.
a Clinica Urologica, Seconda Università degli Studi, Naples, Italy
b Laboratorio di Analisi Numerica, University of Cassino, Cassino, Italy
c Cattedra di Urologia, Università Magna Graecia, Catanzaro, Italy
© 2008 European Association of Urology, Published by Elsevier B.V.