3: Male Reprodutive Surgery

Question 1

What are indications for orchiectomy?

Answer 1

Sterilisation, behaviour, testicular tumours or torsion, avoid hormonally dependent disease e.g. prostate changes

Question 2

What is the only type of aggression castration will reduce?

Answer 2

Only dog-dog aggression - NOT strangers or fearfulnes

Question 3

What other behaviours can castration improve?

Answer 3

Urine marking and roaming

Question 4

Which behaviours are reduced following castration in cats?

Answer 4

Fighting, roaming and spraying

Question 5

What is traditional timing for castration?

Answer 5

6-8 months

Question 6

At what age can you do pre-pubertal neutering in shelters?

Answer 6

7-12 weeks

Question 7

What are some advantages of early neutering?

Answer 7

Fewer complications, faster recovery, retain juvenile appearance, behaviour

Question 8

What are some disadvantages or early neutering?

Answer 8

Increased hip dysplasia and sexual behaviour

Question 9

Why must you monitor cat weight after neutering?

Answer 9

BMR decreases

Question 10

Which other body systems does neutering affect?

Answer 10

Genitalia and skeletal

Question 11

What is the minimum age to castrate a Rottweiler?

Answer 11

Osteosarcoma if done below 12 months

Question 12

What does later neutering decrease the risk of in Golden Rets and Labradors?

Answer 12

Cruciate disease and hip dysplasia

Question 13

What do Golden Retrievers have a 4x risk of if neutered?

Answer 13

Haemangiosarcoma

Question 14

In which breeds do you have more leeway on neutering times?

Answer 14

Small breeds

Question 15

Why do you do a pre-scrotal incision?

Answer 15

Scrotal would swell - very painful

Question 16

What are the indications for scrotal ablation?

Answer 16

Pendulous scrotum, trauma, tumour, urethrostomy

Question 17

What do you do if you get a haematoma following castration?

Answer 17

Do a celiotomy, go to inguinal ring, ligate the artery intra-abdominally

Question 18

In which location is the blood supply to the prostate?

Answer 18

Dorsolateral (prostatic artery, urethral, cranial and causal vesical)

Question 19

In which location is the blood supply to the urethra?

Answer 19

Central

Question 20

What causes a paraprostatic cyst?

Answer 20

Mullerian duct remnant

Question 21

How does testosterone affect cartilage growth?

Answer 21

Facilitates cartilage growth and maturation in the physis so if neutered early get delayed closure

Question 22

Process of penile amputation?

Answer 22

Ligate caudal superficial epigastric, castrate, scrotal or perineal urethrostomy

Question 23

Which antibiotics are best for the prostate?

Answer 23

A basic, lipid soluble one eg erythromycin, TMPS, fluoroquinolones