Final Quick Flips Flashcards
Most accepted pathophysiology for the cause of OCD?
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)
Most common place you will see OCD in the stifle?
Medial ASPECT of LATERAL FEMORAL CONDYLE
But can also happen in medial f.condyle
Most common place you will see OCD in shoulder?
Caudolateral humeral head
Most common place you will see OCD in elbow?
Medial humeral condyle
Most common place you will see OCD in hock?
Medial or lateral talar ridge
What’s the biggest thing to look for with traumatic shoulder luxation?
Thoracic trauma
What type of luxation is most common in traumatic shoulder luxation?
MEDIAL; distal limb ABDucted
For a medial shoulder luxation, we would use a ______ sling. But for any other direction of luxation, we would use a ______ sling.
Velpeau;
Spica
Tx for MODERATE shoulder instability?
Arthroscopic thermal capsulorrhaphy
Rest, PT, hobbles
Tx for SEVERE shoulder instability?
MGHL reconstruction
Velpeau sling for 2-4 wks
Then go into hobbles for 3-4 months…
Which breed of dog is poster child for UAP?
GSD
Name 2 conditions that a patient will manifest the “toed out” stance (elbow adducted, distal limb abducted)
INFRASPINATUS contracture (non-painful, NWB lameness)
Elbow dysplasia (MCD — mostly!)
With UAP, you will see pain on _______, whereas with MCD you will see pain w/ _____ and supination.
Extension;
Flexion
What do we see with UAP?
Shortened ulna and proximal displaced humerus
1yo Britney spaniel with mild lameness that worsens after activity. You find a pathological fx present- what do you do?
Place lag screw across humeral head
Elbow luxations most commonly occur…..?
LATERALLY; Dx w craniocaudal xray
Lg medial epicondyle makes it hard to luxate that way
Lateral repair for elbow luxation using closed reduction, we should use a ________ vs. using open reduction, we should use a _______.
Spica splint 2-3 wks;
Flexible ESF thru humerus, radius, AND ulna 3-4 wks
T or F:
Radial ligaments have straight and oblique parts but it’s not necessary to fix both if they are ruptured.
FALSE; you must repair both.
T or F:
The long portion of the tarsal collateral ligament is taut in both extension and flexion.
FALSE;
The SHORT portion - the long part is taut ONLY in extension.
T or F:
Medial injuries are most common in carpal and tarsal injuries
True
What is commonly the treatment for hyperextension injury of the carpus/tarsus?
ARTHRODESIS
Individual ligament reconstruction=impractical
Carpal hyperextension=more common
Most common carpal joints to be injured?
Middle carpal and carpometacarpal jts (little movement)
Least likely tarsal jt to be injured?
Tibiotarsal - more movement here
T or F:
It’s more common to have to perform a pancarpal than a pantarsal arthrodesis.
TRUE; tarsus is much more malleable to stress than carpus!
K9 requires a PARTIAL carpal arthrodesis. Preferred method of stabilization?
DORSAL T-PLATE….
For a pancarpal arthrodesis, a DCP would be required
Tarsometatarsal jt is affected and requires arthrodesis. Where do you place the plate?
LATERAL
6month old lab presents limping, cranial drawer test is positive, k9 is painful. Most likely Dx?
Avulsion ; skeletally imm.patients have stronger ligaments than they do bones.
CCL ruptures displace medial femoral condyle which way in flexion
Caudally
T or F: TPLO and TTA repairs require meniscal release.
TRUE. Neither stabilize the jt so meniscal release will prevent further injury of meniscus. Allows caudal portion to displace caudally…
When performing TPLO, what degree of tibial plateau angle is important to achieve?
5-7 degrees
T or F:
TTA alters the patellar angle perpendicular to the plateau to neutralize shear forces.
TRUE; but if the y angle is more than 30 degrees, this procedure is contraindicated
Hip dysplasia patients will have pain on ?
Extension
