A posterior urethroplasty may be done:
(1) to repair trauma to the posterior urethra, especially a discontinuity
(2) to repair a stricture
If a problem occurs the onset may be:
(1) soon after the procedure (rapid onset)
(2) weeks or years later (delayed onset)
The patient may notice:
(1) a weak or altered urine stream
(2) no or a greatly reduced urine output
(3) urinary incontinence
A poor outcome following a posterior urethroplasty may involve:
(1) narrowing at the site of the urethral anastomosis with partial or complete obstruction
(2) distal retraction of the bulbar urethra from the anastomosis (resulting in a gap)
(3) making the wrong anastomosis (between the anterior urethra and a paraurethral bladder base fistula)
The patient should undergo a retrograde or voiding urethrography to identify the problem.
