Osteochondrosis and Hip Dysplasia

Question 1

Define dysplasia…

Answer 1

Abnormality in development

Question 2

What are the causes of osteochondrosis and hip dysplasia?

Answer 2

Genetics, diet and exercise may also affect signs

Question 3

What is the purpose of screening for osteochondrosis and hip dysplasia?

Answer 3

Detection of carrier animals by radiographic signs

Detects primary disease

Detects secondary OA

Search for animals who do not yet show clinical signs

Question 4

What are the primary characteristics of hip dysplasia?

Answer 4

Ligament hypertrophy
Subluxtion
Destruction of cartilage
Change of shape of joint surface

Question 5

What are the secondary characteristics of hip dysplasia?

Answer 5

Secondary OA

Question 6

What are the difference involved with clinical and subclinical hip dysplasia?

Answer 6

Clinical - anatomical changes lead to pain, lameness, restricted movement, exercise intolerance.

Subclinical - anatomical changes can be documented by rads but dog shows no clinical signs.

Question 7

What are the clinical signs of hip dysplasia?

Answer 7

Abnormal hindlimb gait, muscle wastage, bilateral hip pain, normal ROM, sitting on walks, won’t clinb stais

Question 8

What are the clinical signs of hip dysplasia in a 0-6m dog? How is it treated?

Answer 8

Subluxation, abnormal gait

Conservative - diet and exercise

Question 9

What are the clinical signs of hip dysplasia in a 6-16m dog? How is it treated?

Answer 9

Subluxation, abnormal gait, pain, lameness

Conservative - diet and exercise
Surgery - anatomical correction, exploratory athroplasty

Question 10

What are the clinical signs of hip dysplasia in a 16m+ dog? How is it treated?

Answer 10

Abnormal joint, secondary OA, pain, lameness, muscular/fibrous stabilisation may have occurred in which case painfree

Conservative - diet, exercise, NSAIDs

Surgical - hip replacement