Urethra injury-trauma grading
Urethral injuries are graded I-V with increasing severity having higher grading.
Grade I 
- Contusion (blood at urethral meatus; urethrography normal)
Grade II 
- Stretch injury (elongation of urethra without extravasation on urethrography)
Grade III 
- Partial disruption (extravasation of urethrography contrast at injury site with contrast visualisation in the bladder)
Grade IV 
- Complete disruption (extravasation of urethrography contrast at injury site without visualization in the bladder; <2cm of urethral separation)
Grade V 
- Complete disruption (complete transaction with >2 cm urethral separation, or extension into the prostate or vagina)
Note to advance one grade for bilateral injuries up to grade III.
References 
Moore EE, et al. Organ injury scaling III: chest wall, abdominal vascular, ureter, bladder and urethra. J trauma. 1992;33:337-8. Trauma scoring. Trauma.org. Available at http://www.trauma.org/archive/scores/ois-urethra.html (Accessed 24 April 2008)
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