What should I do about kidney cast stones? Minimally invasive percutaneous nephrolithotomy helps you solve it! In the past, cast kidney stones could only be removed using open surgery, but most patients find it difficult to accept the open surgery due to the high trauma, bleeding and slow recovery. With the continuous improvement of percutaneous nephrolithotomy (PCNL) technology and the accumulation of surgeons’ experience, even large-sized cast kidney stones without fluid can be well treated by minimally invasive percutaneous nephrolithotomy, and for patients with concentrated stone distribution and few branches in the renal calyces, only one channel needs to be established and the stones can be removed in one operation. channel and remove the stones in one operation.