Bovine Reproduction. Группа авторов

Читать онлайн книгу.

Bovine Reproduction - Группа авторов


Скачать книгу

      Figure 19.37 Preputial epithelium closed with staples.

Photo depicts penrose drain sutured over free portion of penis for urine drainage. Photo depicts prepuce bandaged with Penrose drain within rigid tube.

      Amputation of the Prepuce

      With the bull adequately restrained for aseptic surgery, infiltrate local anesthetic in the skin of the sheath just proximal to the preputial orifice. Incise the prolapsed prepuce into the preputial lumen approximately one‐third of its circumference and ligate bleeders. Suture the internal and external layers of skin with #0 absorbable suture using a simple continuous pattern. Repeat the procedure for the remaining two‐thirds of the circumference of the preputial prolapse. Suture a Penrose drain over the glans penis as previously described and revert the prepuce into the preputial cavity. Place an elastic bandage over the sheath as previously described and manage postoperatively as for circumcision.

      Preputial Reconstruction by Scar Revision

Photo depicts preputial scar. This scar did not restrict extension of penis, but was painful enough to deter breeding. Photo depicts scar dissected in transverse plane. Photo depicts tissue stretched and incised area takes on oval appearance. Closure will be done in longitudinal plane with bootlace suture pattern. Photo depicts extensive fibrosis. Penis is observed following manual extension.

      Figure 19.42 Extensive fibrosis. Penis is observed following manual extension.

Photo depicts scar dissected. Photo depicts closure with bootlace pattern in longitudinal orientation. Schematic illustration of closing incision with bootlace suture pattern when penis returned to retracted position.

      Preputial injuries that occur on B. taurus breeds typically result in phimosis rather than prolapse and therefore represent a different sort of challenge. If the penis is forcefully extended and then not repaired and replaced within the sheath at the same time, paraphimosis may result. The prepuce can be lavaged with an antiseptic solution. Then apply an ointment of your choice and allow second intention healing to occur. If there is extensive swelling, infection, and inflammation (phelgmon), it is usually best to allow the bull one to three months to heal as much as possible on its own before attempting surgical correction. Continued treatment attempts in the face of extensive inflammation as described is virtually always unrewarding. Ascertain the extent of fibrosis and whether or not the penis can be extended (some bulls that can extend will still require surgery). In addition, it is common to encounter one or more abscesses. Scar tissue often must be removed to allow easy, painless, and full extension of the penis. Unlike B. indicus influenced bulls, these bulls rarely have enough preputial tissue to allow for a circumcision. A scar revision technique as previously described can usually be utilized.

      Creation of Preputial Stoma


Скачать книгу