Lecture 8: intro to castration

Question 1

Identify 1-8

Answer 1

1. Skin and tunica darts
2. External spermatic fascia
3. Internal spermatic fascia
4. Parietal vaginal tunic
5. Vaginal cavity
6. Visceral vaginal tunic
7. Ductus deferens
8. Epidiymis

Question 2

identify 1-7

Answer 2

1. Parietal vaginal tunic
2. Vaginal cavity
3. Visceral vaginal tunic
4. Proper ligament of testis
5. Ligament of tail of epididymis
6. Epididymis
7. Spermatic fascia

Question 3

identify 1-4

Answer 3

1. Visceral vaginal tunic
2. Parietal vaginal tunic
3. Epididymis
4. Ductus deferens

Question 4

how should patients be positioned for neuter

Answer 4

dorsal recumbency

Question 5

t or f: always need to draw for feline neuter

Answer 5

false

Question 6

describe the steps of feline neuter

Answer 6

1. Grasp testicle and immobilize between thumb and first finger
2. Make incision over testicle, approx half the length
3. Grasp testicle and pull away from body- break down scrotal ligament and fascia
4. Testicle will release- perform autoligation
5. Cut testicle and release knot
6. Incision heal by second intention
7. Place tattoo on abdomen near umbillicus

Question 7

T or f: once testicle is transected you should place fingers back in hemostats

Answer 7

false- can accidentally open hemostatics before knot tied

Question 8

How do you perform pediatric canine castration

Answer 8

1. Make 1 incision only
2. Exteriorize testicle and strip fascia
3. Autoligate and cut
4. Close with surgical glue

Question 9

t or f: always drape for canine castration regardless of age

Answer 9

true

Question 10

for pediatric canine castrations do you heal by second intention or close with glue

Answer 10

close with glue

Question 11

where do you perform adult canine neuter

Answer 11

prescrotal area

Question 12

what drapes do you place for adult canine neuter

Answer 12

4 quarter drapes and one large surgical drape

Question 13

what is draped outside surgical field in adult canine neuter

Answer 13

penis and scrotum

Question 14

Describe steps for adult canine neuter, closed castration

Answer 14

1. Palpate scrotum through drape and push testicle cranial into surgical field
2. Make incision over testicle down to parietal vaginal tunic
3. Push out testicle and break down fascia between epididymis and scrotum
4. Release testicle and strip down rest of fascia
5. Clamp 1: near body wall, clamp 2: closer to testicle, but not right below
6. Move clamp 1 to right below testicle and place first ligature where clamp 1 was
7. Remove clamp 2 and place 2nd ligature in crush of clamp 2
8. Cut below “new” clamp 1
9. Check for bleeding and place back
10. Layer 1 suture: close SQ tissue and incorporate median raphe with simple continuous
11. Layer 2: intradermal pattern
12. Layer 3: skin glue

Question 15

describe what you would need to do for an open castration

Answer 15

1. parietal vaginal tunic incised
2. Ductus deferens and vascular cord need to be ligated separately
3. Place cords back into tunic and close tunic

Question 16

what suture pattern do you use to close SQ tissue in adult canine neuter and what must you include in closure

Answer 16

simple continuous, include median raphe

Question 17

when closing the first layer for adult canine neuter how do you want to position median raphe and why

Answer 17

elevate raphe high to avoid urethra

Question 18

what suture pattern do you do for second layer in adult canine neuter

Answer 18

intradermal pattern

Question 19

what are some complications of castration

Answer 19

1. Dehiscence
2. Infection/ inflammation
3. Seroma
4. Hemorrhage/hematoma
5. Bruising
6. Abscess
7. Accidental urethral obstruction