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Ventral pararectal approach to the seminal vesicles of bulls.

Results of bilateral seminal vesiculectomy on 4 clinically normal bulls indicated that a ventral pararectal approach can be done to gain exposure to the seminal vesicles without excessive risk of postoperative complications or alterations in the bull's ability to develop and maintain an erection or to ejaculate semen. Advantages of the ventral pararectal approach over the lateral approach to the seminal vesicles are that all dissection is on the midline between the rectum and pelvic urethra and the prevalence of intraoperative hemorrhage and postoperative hematoma formation is decreased. Additionally, the potential to damage nerves that lie adjacent to the rectum and pelvic urethra is reduced. Consequently, bladder atony and ejaculatory failure are less likely to develop after seminal vesiculectomy via a ventral pararectal approach.