Thrall chapter 18 Orthopaedic disease of young and growing dogs and cats

Question 1

1) Osteochondrosis occurs most commonly at what site in dogs?
a) Cranial aspect of the proximal humeral head
b) Caudal aspect of the proximal humeral head
c) Distomedial aspect of the humeral trochlea
d) Femoral condyles

Answer 1

B

Question 2

3) At what age should the anconeal process be fused to the ulna by?
a) 150 days
b) 160 days
c) 170 days
d) 180 days

Answer 2

a. it is not always a separate centre of ossification.

Question 3

4) Congenital radial head luxation has been reported in which breeds? (can be more than one)
a) Pug
b) Shih tzu
c) Bulldogs
d) Pekingnese

Answer 3

b,c

Question 4

5) Which of the following is false regarding osteogenesis imperfecta?
a) It is a heritable disease caused by a structural defect in type 1 collagen
b) It affects the bones only
c) Radiographically it can be confused with secondary hyperparathyroidism
d) The teeth may appear pink

Answer 4

b

Question 5

6) Which disease(s) below involve disruption of normal endochondral ossification?
a) Rickets
b) Osteopetrosis
c) Multiple cartilaginous exostosis
d) Retained cartilage core

Answer 5

c, d

Question 6

7) Retained cartilage cores usually occur in which animals and bones?
a) Small breed dogs, distal radius
b) Brachycephalic dogs, lateral femoral condyle
c) Large breed dogs, distal ulna metaphysis
d) Cats, distal ulna metaphysis

Answer 6

c