Canine retrograde urohydropropulsion. Lessons from 25 years of experience.

Uroliths are commonly voided into the urethra where they often lodge adjacent to the os penis in male dogs. Urethral patency can, with few exceptions, be restored by flushing uroliths back into the bladder lumen by retrograde urohydropropulsion. To be consistently successful, one must be familiar with the concepts of the procedure and each step of the technique.