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Flashcards in Final: Hip, Stifle Deck (64)
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1

What is the surgical option for puppies <20 weeks old with hip dysplasia?

Juvenile pubic symphysiodesis 

Close part of growth plate to get more coverage of acetabulum 

2

How much drawer is normal in an adult dog? Puppy?

Adult= NONE 

Puppy = 4-5mm but with abrupt stop at cranial extent

3

T/F: Most dogs outlive their orthropedic impants. 

True

4

Are lateral patellar luxations more common in small or large breed dog?

Large

5

What are the functions of the collateral stifle ligaments?

Provide joint stability medially and laterally

Prevent varus-valgus motion

6

Which of these is the cranial and which is the caudal cruciate ligament? Which ligament is torn?

Red= Caudal

Blue= Cranial

Torn Cranial, should be same width as caudal

7

What makes the cranial drawer sign limited or 'constrained' in a chronic case of CCL rupture?

Scar tissue /fibrosis

8

When is the highest risk of dislocation post THR?

First 2 weeks post-op

9

How long after an extracapsular repair do you expect a return to peak function?

6 months

10

Why do you do rads when you have a CCL rupture?

To rule out other injuries and visualize joint effusion (medial butress)

11

What surgery is indicated for Legg-Perthes disease?

FHO (asap)

12

What is the 'Common Triad' of multiple ligament injuries?

Cranial and Caudal cruciate 

Collateral ligaments

Medial meniscus 

Deranged stifle

13

When is surgery indicated for a grade II MPL?

Young dog, open growth plates 

14

What is used to assess joint laxity in immature dogs with early stages of hip dysplasia?

Ortolani sign 

Only do on dogs <2yrs old

15

What are 3 indications for an open hip reduction?

Avulsion of fovea capitis

Closed reduction unsuccessful

Unable to maintain closed reduction

16

If you are replacing the removed portion of the patellar groove what type of trochleoplasty have you performed?

Recession (block or wedge)

17

What does a positive cranial tibial thrust indicate?

Cranial subluxation of the tibia/ Completely torn ligament

18

What makes up the 'triangle' of structures you palpate or see on rads to ensure proper hip placement?

Tuber ischii

Crest of ileum

Greater trochanter 

19

How many grades of patellar luxation are there?

(1-4)

20

What part of the meniscus is often injured when CCL rupture occurs? Why?

Caudal body of medial meniscus

CCL rupture displaces medial femoral condyle caudally in flexion leading to wedging/crushing when limb is extended or bares weight

21

Lateral patellar luxation is often associated with coxa ____. 

Valga 

Knock-kneed

22

What type of bandgae do you need to place post closed hip reduction? For how long?

Ehmer sling

7-10 days

23

Why is surgery recommended for most dogs with CCL insufficiency?

Need to establish joint stability 

To less secondary DJD

To address any concurrent meniscal injury (which is painful)

24

What is the most common congential deformity in dgos? What is the typical signalment and presentation?

Medial patellar luxation

Small/Toy breed dog

Bilateral

25

What is a surgical procedure you can do for a 5-8 month of dog with hip dysplasia and without evidence of DJD?  What angle of reduction provides the most favorable prognosis?

Triple Pelvic Osteotomy (TPO)

Improves dorsal coverage of head of femur by axially rotating and lateralizing the acetabulum

<30 deg

26

If you feel joint effusion in the stifle in a dog with a CCL tear is it more likely acute or chronic?

Acute

27

T/F: Lameness with MPL is always associated with the grade. 

False

28

Where is suture passed for the extracapsular lateral suture technique of reconstruction of the CCL?

Through deep facia around flabella and through predrilled hole in tibial crest

29

What is the most common surgical management technique for a meniscal tear?

Partial menisectomy

30

What is the typical signalment for a dog with Legg-Perthes disease?

Young (6-7 mo)

Toy or Small breed dog

Usually unilateral

Progressive weight baring lameness

Pain (irritability, inappetence, chewing at skin over hip)