Final Quick Flips

Question 1

Most accepted pathophysiology for the cause of OCD?

Answer 1

Disruption of anastomosis of blood vessels from perichondral plexus to epiphyseal bone supply

(This leads 2 cartilage necrosis and prevents proper ossification. Generally results in piece of necrotic cartilage that will slough off causing bone on bone rubbing and pain - DJD)

Question 2

Most common place you will see OCD in the stifle?

Answer 2

Medial ASPECT of LATERAL FEMORAL CONDYLE

But can also happen in medial f.condyle

Question 3

Most common place you will see OCD in shoulder?

Answer 3

Caudolateral humeral head

Question 4

Most common place you will see OCD in elbow?

Answer 4

Medial humeral condyle

Question 5

Most common place you will see OCD in hock?

Answer 5

Medial or lateral talar ridge

Question 6

What’s the biggest thing to look for with traumatic shoulder luxation?

Answer 6

Thoracic trauma

Question 7

What type of luxation is most common in traumatic shoulder luxation?

Answer 7

MEDIAL; distal limb ABDucted

Question 8

For a medial shoulder luxation, we would use a ______ sling. But for any other direction of luxation, we would use a ______ sling.

Answer 8

Velpeau;

Spica

Question 9

Tx for MODERATE shoulder instability?

Answer 9

Arthroscopic thermal capsulorrhaphy

Rest, PT, hobbles

Question 10

Tx for SEVERE shoulder instability?

Answer 10

MGHL reconstruction

Velpeau sling for 2-4 wks
Then go into hobbles for 3-4 months…

Question 11

Which breed of dog is poster child for UAP?

Answer 11

GSD

Question 12

Name 2 conditions that a patient will manifest the “toed out” stance (elbow adducted, distal limb abducted)

Answer 12

INFRASPINATUS contracture (non-painful, NWB lameness)

Elbow dysplasia (MCD — mostly!)

Question 13

With UAP, you will see pain on _______, whereas with MCD you will see pain w/ _____ and supination.

Answer 13

Extension;

Flexion

Question 14

What do we see with UAP?

Answer 14

Shortened ulna and proximal displaced humerus

Question 15

1yo Britney spaniel with mild lameness that worsens after activity. You find a pathological fx present- what do you do?

Answer 15

Place lag screw across humeral head

Question 16

Elbow luxations most commonly occur…..?

Answer 16

LATERALLY; Dx w craniocaudal xray

Lg medial epicondyle makes it hard to luxate that way

Question 17

Lateral repair for elbow luxation using closed reduction, we should use a ________ vs. using open reduction, we should use a _______.

Answer 17

Spica splint 2-3 wks;

Flexible ESF thru humerus, radius, AND ulna 3-4 wks

Question 18

T or F:

Radial ligaments have straight and oblique parts but it’s not necessary to fix both if they are ruptured.

Answer 18

FALSE; you must repair both.

Question 19

T or F:

The long portion of the tarsal collateral ligament is taut in both extension and flexion.

Answer 19

FALSE;

The SHORT portion - the long part is taut ONLY in extension.

Question 20

T or F:

Medial injuries are most common in carpal and tarsal injuries

Answer 20

True

Question 21

What is commonly the treatment for hyperextension injury of the carpus/tarsus?

Answer 21

ARTHRODESIS

Individual ligament reconstruction=impractical

Carpal hyperextension=more common

Question 22

Most common carpal joints to be injured?

Answer 22

Middle carpal and carpometacarpal jts (little movement)

Question 23

Least likely tarsal jt to be injured?

Answer 23

Tibiotarsal - more movement here

Question 24

T or F:

It’s more common to have to perform a pancarpal than a pantarsal arthrodesis.

Answer 24

TRUE; tarsus is much more malleable to stress than carpus!

Question 25

K9 requires a PARTIAL carpal arthrodesis. Preferred method of stabilization?

Answer 25

DORSAL T-PLATE….

For a pancarpal arthrodesis, a DCP would be required

Question 26

Tarsometatarsal jt is affected and requires arthrodesis. Where do you place the plate?

Answer 26

LATERAL

Question 27

6month old lab presents limping, cranial drawer test is positive, k9 is painful. Most likely Dx?

Answer 27

Avulsion ; skeletally imm.patients have stronger ligaments than they do bones.

Question 28

CCL ruptures displace medial femoral condyle which way in flexion

Answer 28

Caudally

Question 29

T or F: TPLO and TTA repairs require meniscal release.

Answer 29

TRUE. Neither stabilize the jt so meniscal release will prevent further injury of meniscus. Allows caudal portion to displace caudally…

Question 30

When performing TPLO, what degree of tibial plateau angle is important to achieve?

Answer 30

5-7 degrees

Question 31

T or F:

TTA alters the patellar angle perpendicular to the plateau to neutralize shear forces.

Answer 31

TRUE; but if the y angle is more than 30 degrees, this procedure is contraindicated

Question 32

Hip dysplasia patients will have pain on ?

Answer 32

Extension