Orthopedic Diseases of Young Dogs Flashcards
who usually gets OCD?
large and giant breed dogs
what radiographic findings are typical of OCD?
flattening of subchondral bone or caudal humeral head
saucer-shaped radiolucent area
why is arthroscopic management of OCD of the proximal humerus technically difficult?
overlying muscle mass
what is the prognosis of OCD of the proximal humerus?
good to excellent for normal function
most sound in 4-8 weeks
when are clinical signs of elbow dysplasia seen?
5-7 months of age
can you feel crepitus with elbow dysplasia?
yes: not that much muscle to obscure
what is the indication for surgery for elbow dysplasia?
persistent lameness
when does the anconeal process fuse?
13 weeks
when is removal of the ununited anconeal process perfromed?
if anatomic reduction is not possible
what is OC?
disturbance of endochondral ossification
OCD is manifestation of
what is the pathophysiology of OCD?
loss of chondrocytes
cleft formation
vertical fissures develop
communicate with joint
formation of a cartilage flap
what induces joint inflammation in OCD?
cartilage degradation products reach synovial fluid
does OC cause clinical signs before a loose flap forms (OCD)?
no
what can be found on physical exam to suggest OCD?
crepitus/swelling seldom evident
extreme extension of shoulder elicits pain
extreme flexion may elicit pain
muscle atrophy
is OCD bilateral or unilateral?
initially unilateral lameness
commonly bilateral
