Exam 2: Splint Bone and Proximal Sesamoid Bone Fractures Flashcards Preview

RUSVM LASx PRACTICE QUESTIONS > Exam 2: Splint Bone and Proximal Sesamoid Bone Fractures > Flashcards

Flashcards in Exam 2: Splint Bone and Proximal Sesamoid Bone Fractures Deck (54)
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1

Metacarpus/Metatarsus 2 and 4

are better known as

Splint bones

2

Most splint bones articulate with carpal and tarsal bones,

except for ______,

which has minimal articulation and weight transfer

with the 4th tarsal bone

MT4

3

What are the causes of closed splint bone fractures?

Hyperextension of the fetlock

4

What are the causes of open splint bone fractures?

External trauma

5

T/F:

Many splint bone fractures can be treated

successfully with rest alone

TRUE

6

 

_______ desmitis (inflammation of the ligament)

can be related to splint bone fractures and

can result in PERSISTENT LAMENESS

Suspensory

7

Why is it important to evaluate splint bone fractures

using serial ULTRASOUND?

Because suspensory desmitis can be related to the fracture

and cause persistent lameness

8

What is the most common location for

a splint bone fracture?

DISTAL 1/3 of the bone

9

How are splint bone fractures diagnosed?

RADS + U/S

10

What type of radiograph is required for

dx of splint bone fracture?

DLpmo

11

What type of surgical procedure is indicated for

select cases of splint bone fracture?

Segmental Ostectomy

removal of fracture fragments and residual distal splint bone

12

During segmental ostectomy,

DO NOT REMOVE MORE THAN _________

of the DISTAL splint bone

2/3

13

Fracture of this splint bone is the

exception to the rule, and more than 2/3 of the distal splint

bone can be removed via segmental ostectomy

MT4

14

If you must remove greater than 2/3 of the distal splint bone,

_________ of the proximal fragment is necessary 

internal fixation

15

If plating a splint bone fracture,

DO NOT ENGAGE ________,

because there is micromovement between them

and this will result in persistent lameness

MC3

 

Must remove plate within 3 months if MC3 is engaged

16

This radiographic view is used to diagnose

splint bone fractures

DLpmo

17

What's your dx?

Splint bone fracture

18

A a benign outgrowth of cartilaginous tissue on a bone

is known as

exotosis

19

Splint exotosis is most common in

_____ horses, and usually affects

this particular splint bone

Splint exotosis is most common in

young horses, and usually affects

MC2

 

20

Splint exotosis usually occurs on the

______ aspect of the limb

medial

21

What can cause the condition seen on this radiograph?

Splint exotosis:

 

Direct trauma

Ligament inflammation (desmitis)

22

What are your conservative treatment options for

treatment of splint exotosis/proliferative periostitis?

Rest

NSAIDs

Local DMSO

Infiltration with CORTICOSTEROIDS

23

En bloc removal is the surgical option for treatment of

splint exotosis/proliferative periostitis.

 

The most important aspect of post-op treatment is

EXCELLENT bandaging

or may recur

24

For en bloc removal of splint exotosis/proliferative periostitis,

tourniquet is placed proximally,

and an incision is made directly over the splint bone.

Why must you be careful not to move off of the

splint bone?

Because NEUROVASCULAR bundle is deep to it

25

What 3 places are used to find a pulse in a horse?

Facial artery

Transverse Facial artery

Dorsal Metatarsal artery

26

Describe the location of the

dorsal metatarsal artery

Runs between the lateral splint bone

MT4 and MT3

27

What is your diagnosis?

Dorsal cortical fracture of MC3

28

Dorsal cortical fractures of MC3 are categorized as

_________ fractures

stress

29

Young horses with bucked shins are at risk for

this type of fracture

Dorsal cortical fracture of MC3

30

How do you prevent bucked shins

which can help to avoid dorsal cortical stress fractures

of MC3?

Gait and Speed Training

 

Less long distance galloping