During open surgery era, routine management for large staghorn stone was the so called anatorphic nephrolithotomy. Also, in renal stones within intrarenal pelvis, nephrotomy was popular to access and remove the stone. To access the stone, anatomic hypovascular line (Brodel line) was used. This line is located about 2 cm below the lateral edge of the kidney in the posterior aspect of the kidney. Recently, laparoscopic
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and robotic
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nephrolithotomy is being used and reported in management of renal staghorn in the literature. Therefore, Brodel line is gaining more importance and is being used during surgery as incision line during nephrotomies. The same importance is considered during access in percutaneous surgery.
V. Macchi et al. have tried to demonstrate more details of anatomic hypovascular lines of the kidney that can be a good guide during laparoscopic, robotic, and percutaneous approaches to the kidney. Further research in this regard will be helpful in decreasing postoperative hemorrhage in stone surgery.