- Renal trauma grading scale.

Basically we can divide renal trauma into five grades.

The grades I , II and III are classified as minor traumas, and the grades IV,V as major :-

• Grade I: contusion or subcapsular hematoma, without parenchymal laceration.
• Grade II: superficial cortical laceration less than 1 cm deep.
• Grade III: deep cortical laceration extending more than 1 cm.
• Grade IV:
1. corticomedullary laceration with collecting system injury and urinary extravasation. 
2.  vascular injury:- laceration or thrombosis of a segmental artery.

• Grade V:
1. Multiple deep lacerations.
2. Thrombosis of the main renal artery.
3. Avulsion of renal hilum which devascularizes kidney.

(source of the image click here) 

Return to list of medical grades (click here) 

Dr Ibrahim