03 - joint disease

Question 1

(joint disease)

(degenerative)

1. what joint secondary to cranial cruciate rupture?
2. what joint secondary to hip dysplasia?
3. radiographic findings?

Answer 1

1. stifle
2. coxofemoral

Question 2

(joint disease)

(neoplastic)

1. what is the most common?
2. what radiographic changes?

Answer 2

1. synovial cell sarcoma
2. destruction of subchondral bone, soft tissue swelling

Question 3

(joint disease - inflammatory)

(infectious)

1. can be hematongeous (mostly young) or direct
2. radiographic findings?

Answer 3

2. subchondral bone lysis, intraarticular soft tissue swelling

Question 4

(joint disease - non-inflammatory (immune mediated))

(erosive)

1. three kinds?
2. radiogarphing findings? (4 of them)

Answer 4

1. rheumatoid arthritis, greyhound polyarthritis, feline polyarthritis
2. joint effusion, variable subchondral bone lysis, dec joint space width, variable periarticular new bone

Question 5

(joint disease - non-inflammatory (immune mediated))

(non-erosive)

1. how do radiographs usually look?
2. causes?

Answer 5

1. normal or joint effusion
2. systemic lupus erythmatosus, idiopathic

Question 6

(developmental)

(osteochondrosis)

1. signalment?
2. failure of what?
3. common sites?
4. what 2 secondary changes to you see?

Answer 6

1. large young dogs
2. endochondral ossification
3. caudal humeral head, humeral condyle (medial aspect), stifle, tarsus (medial or lateral trochlear ridges)
4. joint effusion, 2° DJD

Question 7

(hip dysplasia)

1. most common in what?
2. poor coverage of the femoral head by what?
3. secondary signs of what?

Answer 7

1. large dogs
2. dorsal acetabular rim
3. DJD (osteophytes, shallow acetabulum, remodeling of the femoral head and neck, enthesopathy at the joint capsule attachment)

Question 8

(elbow dysplasia)

1-3. consists of what 3 things?

Answer 8

1. ununited anconeal process (should be fused by 20 weeks)
2. fragmented medial coronoid process
3. OC at medial aspect of the humeral condyle

Question 9

(avascular necrosis of the femoral head)

1. aka what?
2. signalment?
3. 4 radio findings?

Answer 9

1. Legg-Calves Perth disease
2. young small/toy breeds
3. flattened femoral head, change in opacity, ^ joint space width, possible fracture of femoral head

Question 10

(patellar luxation)

1. signalment?
2. medial or lateral more common?
3. lateral luxations usually occur in larger or smaller breeds?
4. may not always see on radiographs

Answer 10

1. small/toy breeds
2. medial
3. larger