From: Emergency primary repair of grade V bladder neck injury complicating pelvic fracture
| Grade* | Injury type | Description of injury |
|---|---|---|
| I | Contusion | Blood at urethral meatus; urethrography normal |
| II | Stretch injury | Elongation of urethra without extravasation on urethrography |
| III | Partial disruption | Extravasation of urethrography contrast at injury site with visualization in the bladder |
| IV | Complete disruption | Extravasation of urethrography contrast and injury site without visualisation in the bladder, < 2 cm of urethra separation |
| V | Complete disruption | Complete transection with >2 cm urethral separation, or extension into the prostate or vagina |