Injury to the Male Posterior Urethra in Fractured Pelvis: A New Classification

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Abstract
The present criteria to diagnose a ruptured posterior urethra in cases of a fractured pelvis do not provide accurate information on the degree and site of the urethral injury. A method of retrograde urethrography in such patients was described and the results obtained in 15 cases were reported. A new classification of membranous urethral rupture in cases of fractured pelvis was proposed: type 1, the prostate or urogenital diaphragm is dislocated but the membranous urethra is merely stretched and not severed; type 2, the membranous urethra is ruptured above the urogenital diaphragm at the apex of the prostate; and type 3, the membranous urethra is ruptured above and below the urogenital diaphragm. The clinical significance of these lesions was discussed and the more widespread use of retrograde urethrography in patients with a suspected posterior urethral rupture was emphasized.

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