Logistic Regression Model for Predicting Stone-Free Rate After Minimally Invasive Percutaneous Nephrolithotomy

The results of our study have demonstrated that an increased stone number and size, location in a calix, staghorn calculus, and moderate to severe hydronephrosis were associated with decreased stone-free rates after MPCNL. We have developed a mathematical model for predicting the stone-free rate that will be helpful for patient counseling and surgeon decision-making regarding the management of upper urinary tract calculi.