Canine Hip Dysplasia Flashcards
1
Q
Is hip dysplasia a monogenic or polygenic disease? What breeds are predisposed?
A
- Polygenic - complex multifactorial disease
- German Shepard, Golden Retriever and Labrador Retreiver
2
Q
What are the clinical signs of hip luxation that are seen?
A
- Bunny hopping gait
- Positive Ortolani
- Pain on extension
- Crepitus of hips
3
Q
List six radiographic signs that you would expect to see with hip dysplasia in a dog:
A
- Morgan line – Osteophyte formation at insertion of joint capsule
- Less than 50 % coverage of femoral head
- Remodelling, sclerosis and thickening of femoral neck
- Joint laxity (see Penn HIP)
- Perichondral osteophyte formation
- Remodeling and sclerosis of the acetabulum
4
Q
What is the minimum age for OFA rating of hips?
A
Needs to be at least 2 years old for an official OFA rating
5
Q
For PennHip:
- What is the ideal distraction score?
- What is the earliest it can be done?
A
- Less than 0.3 is best
- As early as 16 weeks w/best results @ 1 year
6
Q
Describe the conservative management approach for Hip Dysplasia?
A
- NSAID’s - e.g. Caprofen
- Weight management
- Chondroprotective agents - nutraceuticals
- Conservative exercise
7
Q
For juvenile pelvic symphysiodesis:
- State the principle behind the procedure
- When should it be done?
A
- Involves either cauterising the growth plate or stapling → encourage more acetabular coverage of the femoral head as the dog grows
- Should be done 16-20 weeks - before DJD changes are evident
8
Q
For a Triple Pelvic osteotomy (TPO):
- Where are the three cuts made?
- What age should the procedure ideally be performed at?
A
- Pubis, ischium and ileum
- Perform at 6 months → 12 months of age
9
Q
What are the two different methods for performing a total hip replacement in canine patients?
A
- Cemented
- Cementless options
10
Q
What are two methods in dogs that can be used to prevent the development of hip dysplasia?
A
- Over nutrition
- Conscious breeding
