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Large Animal Surgery

Large Animal Surgery. Male Reproductive Surgery . December 2005 Amy Fayette. What is your diagnosis. Warts (fibropapilloma). What is the most common neoplasm found on the penis of ruminants. Fibropapilloma . At what age do you normally see fibropapillomas in ruminants. 6 months to 1 year.

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Large Animal Surgery

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  1. Large Animal Surgery Male Reproductive Surgery December 2005 Amy Fayette

  2. What is your diagnosis • Warts (fibropapilloma)

  3. What is the most common neoplasm found on the penis of ruminants • Fibropapilloma

  4. At what age do you normally see fibropapillomas in ruminants • 6 months to 1 year

  5. Why do you normally not see fibropapillomas in older bulls • Older bulls have developed immunity

  6. What is the cause of fibropapillomas in ruminants • Bovine papilloma virus

  7. What is phimosis • Penis is prevented from coming out of the prepuce

  8. Why are warts not good for reproduction • Wart will bleed into the sperm- hemospermia • Can pass to the female

  9. What is the tx for warts • Debulk and resect wart • Send sample to lab for an autogenous vax

  10. What are the aftercare instructions post resection • Sexual rest for 60d

  11. What is the prognosis for life with warts? For repro soundness? • Good for both

  12. What is paraphimosis • Penis is prevented from retracting back into the prepuce

  13. What is your diagnosis • Penile hair ring

  14. What is the treatment for penile hair ring • Cut with scissors

  15. What is the px for penile hair ring • Excellent prior to necrosis

  16. What is a persistent penile frenulum • Band of CT linking the ventral aspect of the glans penis to the preputial mucosa

  17. What is the tx for a persistent frenulum • Transect

  18. What is the cause of penile hematoma • Bull fails to achieve intromission before making a copulatory thrust

  19. What is the most common location for a penile hematoma • Distal sigmoid flexure on the dorsal aspect

  20. What is the typical signalment for a penile hematoma • Young (2 year old) bull who is inexperienced • Especially beef bulls and horned bulls

  21. The amount of blood in a penile hematoma is related to ____ • Number of attempts not the size of the rupture

  22. What is your diagnosis • Preputial prolapse

  23. What is the breeds are more susceptable to preputial prolapses • Bos indicus spp because they have a pendulous prepuce and a large preputial orifice

  24. What is the most common sequelae to a penile hematoma • Preputial prolapse

  25. How do you differentiate a penile hematoma from an abscess • Perform an aspirate

  26. What complications can occur from a penile hematoma • Abscessation • Adhesion • Analgesia of the penis • Vascular shunt • Hematoma recurrence

  27. What is the px if the penile hematoma turns into an abscess • Poor

  28. What is the medical therapy for a penile hematoma • Warm water hydrotherapy (TID) • Manual massage • Anti inflammatory tx • Manual extension • Antibiotics • Ultrasonographic tx (if available) • Sexual rest for 60 days

  29. What is the surgical procedure for penile hematomas • Remove clots and flush the cavity • Break down adhesions • Primary closure of the tear if you can find it

  30. What is the post op requirements for a penile hematoma • Antibiotics • 2 months sexual rest • Removal of skin sutures • Banamine • Hydrotherapy

  31. What is a successful outcome following surgery for penile hematoma • Bull able to sire progeny and breed naturally

  32. If the penile hematoma is < 20 cm what is the success rate for surgical and conservative therapy • 80% for both

  33. If the penile hematoma is >20 cm what is the success rate for surgical and conservative therapy • 80% for surgical • 33% for conservative

  34. Other than size what else effects the success rate following tx • Time from injury to surgical repair

  35. Some of the old texts say to wait before surgery…why is this not a good idea • Beef bulls aren’t looked at every day so the onset of the penile hematoma may be off by 7 days

  36. Immediate surgery increases success rates because ___ • Decreases chance of abscess and decreases chance of adhesion formation

  37. When are preputial injuries most likely • After spring and fall breeding

  38. What are the two most common preputial injuries • Phimosis • Laceration

  39. What is your diagnosis • Phimosis, preputial prolapse with laceration and necrosis

  40. What is your diagnosis • Paraphimosis with prepucial laceration

  41. Is paraphimosis more common in cattle or equine • Equine

  42. What is paraphimosis • When the penis cant go back into the prepuce

  43. What is te first thing to do in a stallion with paraphimosis • Place a catheter because inflammation ma collapse the urethra

  44. How do you treat a preputial laceration • DO NOT SUTURE • Systemic ATBs • Hydrotherapy • Topical ointment • 60 days sexual rest

  45. Why should you not suture a preputial laceration • Heavily contaminated wound

  46. What is the px for a preputial laceration following med therapy • 75%

  47. What should be done with the remaining 25% • Surgery after the infection is cleared (about 5days)

  48. What are the ingredients for a good topical ointment (petermycin) • Lanolin, tetracycline, scarlet oil

  49. What is circumcision • Preputial amputation

  50. What is posthioplasty • Resection and anastamosis • “reefing”

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