Comparison of STONE score, Guy’s stone score and Clinical Research Office of the Endourological Society (CROES) score as predictive tools for percutaneous nephrolithotomy outcome: a prospective study

Objective To evaluate which among the three scoring systems used to predict stone‐free status (SFS) after percutaneous nephrolithotomy (PCNL), namely Guy’s stone score (GSS), STONE nephrolithometry score and Clinical Research Office of the Endourological Society (CROES) nephrolithometry nomogram, is the most accurate predictor of SFS. Method and Materials We prospectively included all patients who underwent PCNL (tract size >24 F) at our...