Hip Dysplasia

Question 1

What type of gait will a hip dysplasia dog have?

Answer 1

Bunny hopping

Question 2

What orthopedic test do you do to confirm hip dysplasia?

Answer 2

Ortolani

Question 3

What is radiographic diagnosis of hip dysplasia?

Answer 3

Less than 50% coverage of the femoral head, Morgan line

Question 4

When is diagnosis of hip dysplasia usually made?

Answer 4

3-8 months

Question 5

How is an ortolani test performed?

Answer 5

Under sedation, feels for pop when femoral head returns to acetabulum

Question 6

What % of hip dysplasia dogs improve with conservative managment?

Answer 6

80%

Question 7

Why might clinical signs assoc. w/hip dysplasia return later in life after improvement earlier in life?

Answer 7

Progression of degenerative changes

Question 8

What is a Morgan line?

Answer 8

Osteophyte formation at insertion of joint capsule

Question 9

How do you rate joint laxity?

Answer 9

Penn HIP score

Question 10

How old does a dog have to be to get an official OFA rating?

Answer 10

At least 2yo

Question 11

Is OFA or Penn HIP more subjective?

Answer 11

OFA

Question 12

What is Penn HIP based on?

Answer 12

Distraction index measured by the radiologys

Question 13

What distraction index is a good prognosis for not developing hip dysplasia?

Answer 13

<0.3

Question 14

At what age does a Penn HIP analysis work best?

Answer 14

1yo

Question 15

What constitutes conservative treatment of hip dysplasia?

Answer 15

NSAIDs, weight management, chondroprotective agents, conservative exercise

Question 16

What chondroprotectives can you use to treat hip dysplasia?

Answer 16

Glucosamine, chondroitin sulfate

Question 17

What are surgical options for hip dysplasia treatment?

Answer 17

Juvenile pelvic symphysiodesis, TPO, total hip replacement, femoral head and neck ostectomy

Question 18

Cauterizing or stapling the growth plate so that you encourage more acetabular coverage of the femoral head as the dog grows

Answer 18

Juvenile pelvic symphysiodesis

Question 19

At what age would you perform a juvenile pelvic symphysiodesis?

Answer 19

14-20wk (difficult to dx at this age)

Question 20

Does hip dysplasia surgery prevent degenerative joint disease?

Answer 20

No

Question 21

How do you prevent hip dysplasia?

Answer 21

Conscious breeding, proper nutrition during growth

Question 22

What type of nutrition is assoc. w/higher incidence of hip dysplasia?

Answer 22

Over-nutrition

Question 23

What is a femoral head and neck ostectomy?

Answer 23

Removal of head and neck of femur resulting in a “pseudo-joint”

Question 24

What are two requirements for good stability of a femoral head and neck ostectomy?

Answer 24

Well muscled and good body weight

Question 25

What type of lameness might result from a femoral head and neck ostectomy?

Answer 25

Mechanical (not painful) lameness d/t limb shortening

Question 26

What hip dysplasia treatment option is considered a salvage procedure?

Answer 26

Femoral head and neck ostectomy

Question 27

What relatively new procedure eliminates pain associated with hip dysplasia progression?

Answer 27

Denervation of hip joint capsule

Question 28

Which animals are the best candidates for a femoral head and neck ostectomy?

Answer 28

Small animals wt 20-30lb (w/good muscle and BCS)

Question 29

Which test looks for hip laxity?

Answer 29

Ortolani sign

Question 30

Young dogs w/minimal 2* degenerative changes and a deep acetabulum are good candidates for which hip dysplasia surgical treatment?

Answer 30

Triple pelvic osteotomy

Question 31

What are clinical signs of hip dysplasia?

Answer 31

Difficulty rising and laying down on pelvic limbs, bunnty hopping

Question 32

What is the salvage procedure performed for hip dysplasia dogs that cannot have a TPO or THR?

Answer 32

Femoral head and neck ostectomy