Horse stifle

Question 1

What is the best view to see the lateral trochlea of the femur and the medial femoral condyle?

Answer 1

Craniomedial caudolateral

Question 2

Where is the most common spot for OCD in the stifle?

Answer 2

Lateral trochlea of the femur - middle 1/3

Question 3

What is the most common spot for Cyst-like lesions in the stifle?

Answer 3

Medial condyle

Question 4

Cyst-like lesions are caused by four things… what are they?

Answer 4

OCD
Ischemia
Infection
Trauma

Question 5

Where are infectious cyst-like lesions commonly seen?

Answer 5

Caudal aspect of the medial condyle

Question 6

What are less common areas for OCD in the stifle?

Answer 6

Medial femoral trochlea

Petella - commonly seen with severe trochlear lesions

Question 7

Where are the most common petellar fractures?

Answer 7

Medial side

Question 8

Where are most cyst-like lesions in the patella noted?

Answer 8

Medial side - probably due to the fact that this is where the fractures are most common and fractures can cause cyst-like lesions

Question 9

When should you screen for the OCD in a horse?

Answer 9

After 12-18 months because many can resolve

Question 10

Patellar fragmentation is commonly assoicated with horses that have under gone what?

Answer 10

Horses that have undergone medial patellar desmotomy

Question 11

A medial desmotomy can cause what change to the patella?

Answer 11

Increased angle between the proximal articular surface of the patella and the femur

Question 12

What is the only radiographic sign that may be seen with upward patellar fixation?

Answer 12

Remodeling of the apex of the patella

Question 13

Patellar luxation is commonly which way in a horse?

Answer 13

Lateral

Question 14

Patellar luxation in a horse can be bilateral?

Answer 14

Yes commonly is

Question 15

What breed of horse commonly gets patellar luxation?

Answer 15

Miniature breeds and ponies

Question 16

What is the best position for ultrasounding the condyles when looking for cyst-like lesions?

Answer 16

flexed

Question 17

Caudally located cyst-like lesions are commonly associated with?

Answer 17

Septic origin.

Question 18

What side of the stifle joint is more commonly affected by DJD?

Answer 18

lateral compartment

Question 19

What is the most common radiographic sign associated with DJD in the stifle?

Answer 19

Osteophytes along the tibial and femoral margins

- Most commonly along the medial margin of the femur

Question 20

Narrowing of the femorotibial joint space is a sign of what?

Answer 20

Meniscal prolapse

Question 21

What is the most common radiographic sign associated wtih meniscal damage?

Answer 21

New bone formation cranial to the medial intercondylar eminence of the tibia

Question 22

If swelling in the stifle or if lameness is localized to the stifle, and radiographs are normal what is the most common cause for the lameness in the horse?

Answer 22

Meniscal injury.

Question 23

Fractures of the medial intercondylar eminence is commonly assoicated with what?

Answer 23

Cranial cruciate ligament damage

Question 24

Fractures of the tibia are most commonly located in the?

Answer 24

Proximal tibia

Question 25

Fracatures involving the caudal aspect of the proximal tibia are commonly associated with?

Answer 25

Cruciate ligament damage and often at the insertion

Question 26

What side do proximal tibia fractures commonly start at?

Answer 26

lateral aspect

Question 27

What are the three most common radiographic finding of a stress fracture?

Answer 27

Periosteal bony proliferation
Thickening of the cortical bone
Remodeling of the adjacent cancellous bone.

Question 28

Where does calcinosis circumscripta commonly occur?

Answer 28

Lateral aspect of the stifle close to the extensor fossa

Question 29

Calcinosis circumscripta is commonly unilateral or bilateral?

Answer 29

Bilateral

Question 30

What joints are most commonly affect in foals with hematogenous osteomyelitis?

Answer 30

Femoropatellar joint

Femorotibial joint

Question 31

Bony involvement from septic arthritis is commonly seen uniaxial in the femorotibial joint and commonly affects which side?

Answer 31

Medial