Following video is an excellent animation of Percutaneous Nephrolithotomy. PCNL is used to remove large stones from kidneys. 00:00-00:17 Instruments 00:18-01:28 Visualisation of the Stone 01:29-02:38 Insertion of Guidewire 02:39-03:11 Insertion of Dilator and Stiff Working Wire 03:12-04:10 Breaking of Stone 04:11-05:01 Retrieval of Stones 05:02-05:37 Insertion of Nephrostomy Drainage Catheter and Removal of Wires