Final: OA/ OCD, Shoulder, Elbow Flashcards Preview

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Flashcards in Final: OA/ OCD, Shoulder, Elbow Deck (90)
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1

When would you use a DCP (dynamic compression plate) on a carpal injury?

When you want to perform a pancarpal arthodesis because the antebrahiocarpal joint is abnormal and all 3 joints need to be fused (do in conjunction w/removal of all cartilage and cancellous bone graft)

Place on dorsal surface 

BEST TREATMENT FOR CARPAL LUXATIONS, antebrachial carpal injuries

More commonly done tha partial carpal arthodesis

 

2

What are the indications for surgical treatment of a shoulder luxation?

Chronic/recurrent/unstable luxation

Accompanying fractures (e.g. HBC injuries)

3

What is the most mobile joint in the carpus? Tarsus?

Antebrachiocarpal joint

Tibiotarsal/Talocrural joint

I.e. these are least likely to be affected by luxations

4

What is the recommended treatment for collateral injury of the tarsus/carpus?

Surgical mgmt- reconstruction/replacement of the ligamenets

Splint + rest not helpful alone, ESF can help joint stay stable while soft tissue trauma is healing

5

What are the 3 steps to surgically repairing a shoulder luxation?

1. Arthrotomy (to evaluate/reduce joint)

2.Glenohumeral ligament (MGHL) repair

3. Imbrication/repair of capsule (during closure)

 

6

What are the 5 risk factors for OA?

Advanced age 

Size and growth rate (large breed dogs)

Obesity

Repeated trauma and mechanical stress

Breed/genetics

7

Which of the following are medial and which are lateral on the tarsus?

Trochlea of the talus

Calcaneous

Metatarsal bone I

Metatarsal bone V

Central tarsal bone

 

Medial:Trochlea, MT I, central tarsal bone

Lateral: Calcaneous, MT V

8

T/F: Excess weight will accelerate the expression of OA/DJD.

True 

No such thing as too thin for any dog w/OA

9

Why are corticosteroids not recommended with DJD?

Steroids depress chrondrocyte metabolism and alter the matrix and can affect collagen formation, so they have long term deleterious effects

10

What is the typical signalment for congenital shoulder luxation?

Small or Toy breed dog

3-10 months of age 

 

Shetland sheepdog, Collie, Elkhound too

11

What can you do to treat pain due to end-stage OCD in the tarsocrural joint?

Tarsocrural arthodensis

Fuse in standing angle, remove articular cartilage, pack w/bone graft, rigid fixation

12

What does it indicate if a dog is chewing at his toes that are peaking out of the bottom of a bandage?

Bandage too tight

13

What is the purpose of curettaging in OCD surgery?

To stimulate fibrocartilage

14

What type of disease (infectious, non-infectious nonerosive, non-infectious erosive, non-inflammatory) shows the following radiographic signs:

Joint space collapse

Multiple joints affected 

No bony changes

Noninfectious Nonerosive

15

What breeds are predisposed to infraspinatus contracture?

Hunting breeds 

(Spaniels, Pointers, Retreivers)

16

GSD are particularly predisposed to what form of elbow displasia?

UAP

17

How many tarsal bones are there?

7

18

Which portion of the tarsal collateral ligament is taut only in extension? Which is taut in both flexion and extension?

Long- Extension only

Short- Extension and flexion

19

What type of incongruity is associated with UAP? FCP?

UAP- short ulna + long radius

FCP- short radius + long ulna

20

What diagnostic can you use to definitively establish whether joint disease is inflammatory or not?

Arthrocentesis

21

Shoulder instability will cause medial instability and an increased ______ angle.  Normal is ___ degrees, abnormal is over ___ degrees. Many clinical causes fall between these values.

Abduction

30

50

22

What surgical treatment is indicated for shoulder OCD?

Via arthroscopy: 

First remove flap and lavage joint 

Then debride bone with curette/shaver

23

What are 3 options for post-op immobilization after a calcanean tendon repair?

External fixator

Splint

Giant lag screw (from calcaneous to tibia)

Often combo of these

24

What stess laterally deviates the limb? Medially?

VaLgus= Lateral

Vargus = Medial

25

What supporting structure(s) is/are most commonly affected with shoulder instability?

Medial structures: Medial glenohumeral ligament, Suprascapularis tendon

26

Where do OCD lesions on the tarsus occur?

Talus

27

What joint condition is this posture associated with? Describe the posture in terms of what is adducted and what is externally rotated. 

MCD (medial compartment disease)

"Toed out" posture

Elbow adducted

Toes/rest of limb abducted

Taking strain of medial compartment

28

Is osteoarthritis/osteoarthosis inflammatory or not?

Non-inflammatory DJD

29

What surgery is this? When is it indicated? Describe what's going on. 

Partial carpal arthodesis 

When antebrachiocarpal joint is healthy

Middle and carpometacarpal joints are fused using a T-Plate (or pins)

30

If IOHC (incomplete ossification of the humeral condyle) presents to you with no displacement or fractures, how do you treat?

Single lag screw through condyles