Grade I | Posterior urethra stretched but intact |
Grade II | Partial or complete posterior urethral tear above intact urogenital diaphragm |
Grade III | Partial or complete tear of combined anterior and posterior urethra with torn urogenital diaphragm |
Grade IV | Bladder neck injury with extension to the urethra |
Grade IVa | Injury to bladder base with extravasation simulating type IV |
Grade V | Isolated anterior urethral injury |