Exam 1--Equine Info

Question 1

How would clinical presentation differ between a horse with pedal osteitis and infectious osteitis?

Answer 1

Infectious osteitis will be severely lame (Fx lame)

Question 2

Differentiate between a type 1 and type 2 P3 fx

Answer 2

Type 1–involves palmar process, non-articular

Type 2–off midline, articular

Question 3

Describe a type 3 Fx of P3

Answer 3

Articular, mid-saggital

Question 4

Concerning P3 fractures, describe:

1) Type 4
2) Type 5
3) Type 6

Answer 4

1) Fx of extensor process
2) comminuted Fx
3) marginal Fx

Question 5

A crescent-shaped radiolucent cutout on the dorsal, distal cannon bone (above condyles) is consists with?

Answer 5

Villonodular synovitis

Question 6

A differential for a 4yr old racehorse (or hunter jumper) that is painful in the area of his proximal seasmoids?

Answer 6

Sesmoiditis

Question 7

3 common locations OC occurs in the fetlock joint

Answer 7

1) Sagittal ridge
2) palmar aspect of condyle (DP view)
3) Cannon bone (cyst-like lesions)

Question 8

4 types of fx that can occur on sesmoids?

Which carries the worse prognosis?

Answer 8

Apical
Abaxial
Basilar worst prognosis
Mid-body

Question 9

How do thoroughbreds and standardbreds differ in the common location for:

1) sesmoid fx
2) condylar fx

Answer 9

1) TB–medial sesmoid in forelimb
STB–lateral sesmoid in HL

2) TB–lateral condyle in forelimb
STB–medial condyle in HL

Question 10

Concerning carpal osteoarthritis, which joints are commonly affected? Which joint, if affected, carries a worse prognosis?

Answer 10

Commonly affected: antebrachial & middle carpal

worse prognosis if carpometacarpal is involved

Question 11

Sclerosis of the 3rd carpal bone commonly occurs in which area of the bone?

Answer 11

On the radial facet (medial)

Question 12

4 common locations for CHIP fxs to occur?

Answer 12

Distal dorsal aspect of:

• -radius (1)
• -radial carpal bone (2)
• -intermediate carpal bone (3)

4) dorsoproximal C3

Question 13

Which carpal bone is most commonly affected by SLAB fractures?

Answer 13

C3

Question 14

3 places to look for osteochondrosis in tarsal joint?

Answer 14

1) distal intermediate ridge of tibia (DIRT lesion)
2) trochlear ridges of tallus
3) medial malleolus

Question 15

2 common locations for OC in stifle?

Answer 15

Lateral trochlear ridge

Medial femoral condyle

Question 16

3 common locations for physitis?

Answer 16

Distal:

• -cannon
• -radius
• -tibia

Question 17

When does most of the growth occur from:

1) distal tibia and radial physis
2) distal cannon

Answer 17

1) first 6months

2) first 3 months

Question 18

Most common angular limb deformity?

Answer 18

carpal valgus

Question 19

Define:

1) Valgus

2) Varis

Answer 19

1) lateral deviation

2) medial deviation