Lecture 22 - Common Procedures in FA Surgery Flashcards Preview

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Flashcards in Lecture 22 - Common Procedures in FA Surgery Deck (49)
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1

What are some common surgical procedures in FA?

  1. Castration
  2. Dehorning
  3. Enucleation
  4. Toe amputation
  5. Umbilical hernial repair
  6. C-section

2

What are some things we can use for pain management?

Sedation, Lidocaine, NSAIDs

3

What are 4 indications for castration in FA?

  1. Behavior modification
  2. Prevent unintended births
  3. Improve carcass quality
  4. Pathologic processes

4

What are 3 pathologic processes that may indicate a castration is needed?

Inguinal hernia, testicular torsion, trauma

5

What castration methods are used in LA?

Hormonal, chemical, physical (surgical and non-surgical)

6

What are non-surgical (bloodless) methods of castration in FA?

Band castration, Burdizzo emasculatome

7

What should you always do before starting a castration?

Make sure there are 2 testicles

8

What two things are used for band castration and what are the guidelines for each?

  1. Callicrate bander (no size limit; 300-3000#)
  2. Elastrator bander (young animal <1 month)

9

What does a Burdizzo emasculatome do? What happens to the scrotum and testicles as a result?

Crushes the cord;

Testicles atrophy and shrink; scrotum and testicles do not slough

10

Crush sites with a Burdizzo emasculatomes should be _____.

staggered

11

Where should lidocaine be placed before a castration?

Across the scrotum base where we will incise

12

Where should the incision for a castration be made?

Junction of the middle and distal third of the scrotum

13

What instrument is used for a horizontal castration approach?

Scalpel blade

14

What instrument is used for a vertical castration approach?

Newberry knife

15

What type of hemostasis occurs in a castration of an animal that is <150 kg?

Traction (pulling) --> vasospasm, vasoconstriction, hemostasis

16

What type of hemostasis occurs in a castration of an animal that is >250 kg and what instruments are involved?

External hemostasis;

Henderson castration tool, emasculator, suture

 

17

What type of suture type and pattern should be done when trying to achieve external hemostasis in a castration?

Absorbable;

Transfixation, encircling, Miller's

18

What are some potential complications of castrations?

Swelling, surgical site infection, hemorrhage, tetanus

19

What is the indication for dehorning?

Reduce injuries

20

When is it better to dehorn and what should be avoided at the same time?

Early; <6 weeks

Avoid concurrent stress such as vaccination and weaning

21

What nerve is blocked for dehorning cattle?

Cornual branch of zygomaticotemporal nerve

22

What nerves are blocked for dehorning goats?

Cornual branch of zygomaticotemporal nerve

Cornual branch of infratrochlear nerve

23

When should paste disbudding be done?

<48 hours and preceding feeding

24

Why should calves not be exposed to rain for 24-48 hours after using disbudding paste?

Paste can run into the eyes causing ulcers

25

Where should a cautery/hot iron be placed when disbudding?

Over the horn bud

26

How should a cautery/hot iron be used to disbud?

Apply and rotate in a circular motion, then dislodge horn bud

27

How long should the cautery/hot iron be used when disbudding calves? Male goats? Female goats?

Calves = 5-7 seconds

Male goats = 5 seconds, 4mm

Female goats = 3 seconds, 2mm

28

What should the barned dehorner be used on and what is the risk?

Use on larger horns;

Can expose the cornual diverticulum of the frontal sinus

29

When should a keystone dehorner be used, where should it be placed, and what is the risk?

Used for much larger horns;

Used at the base of the horn;

Exposes the cornual diverticulum of the frontal sinus

30

What are potential complications from dehorning?

  1. Sinusitis
  2. Surgical site infection
  3. Hemorrhage
  4. Improperly performed --> recurrence of growth --> scur formation