Exam 2: Digit Amputation Flashcards Preview

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Flashcards in Exam 2: Digit Amputation Deck (33)
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1

What are the 5 potential causes of

sepsis of the distal interphalangeal joint (DIJ)? 

Pododermatitis

Peri-articular wound

Interdigital wound

Interdigital necrobacillosis

Solar abscess extension

White line disease

PPIISW

2

What structures are involved in

Septic DIJ?

P3, P2

Navicular bursa/bone

DDFT/sheath

PIJ (prox. interphalangeal joint)

3

What might you see on rads of an

animal with septic DIJ?

Periosteal rxn

Asymmetric ST swelling

Bony lysis around joint

 

4

What's your diagnosis if this malleable probe

is placed into the draining tract and

it falls right into the joint space?

Septic DIJ

5

What are the treatment options for

chronic septic arthritis of the DIJ in cattle?

Facilitated ankylosis (immobilizing a joint by fusing the bones)

Amputation (NOT in horses)

Culling

6

any surgical procedure that requires opening a joint

Arthrotomy

7

Immobilizing a joint via fusion of the bones

Facilitated ankylosis

8

Resection of the _______ and ________

are required in order to perform 

facilitated ankylosis

DDFT and Navicular Bone

9

Anesthesia for distal limb surgery

requires local IV anesthesia and a tourniquet.

How long can you leave on the tourniquet?

Up to 2 hours

10

A type of peripheral nerve injury; 

the mildest form of nerve injury.

It is classified as a transient conduction block of motor or sensory function without nerve degeneration,

although loss of motor function is the most common finding.

Neuropraxia

11

How do you prevent neuropraxia 

during distal limb sx?

Put padding under the tourniquet

12

What type of tourniquet is used for distal limb sx?

Pneumatic tourniquet

13

During anesthesia for distal limb sx,

how do you check to see if your block worked?

use HOOF TESTERS

14

T/F:

With digit amputation, you have a slow return to production,

but the expected production life increases

FALSE!

You have a FAST return to production, but a 

DECREASED production life

15

What are the indications of digit amputation?

Septic coffin joint

P2 or P3 infection or fracture

Injury or sepsis distal to P1

16

For digit amputation sx, leave as much _____ as possible

in order to provide soft tissue support

bone

17

If you perform a skin flap procedure during digit amputation,

this is an

Amputation ________ Technique

CLOSED

18

If you perform digit amputation without a skin flap,

this is an

Amputation ________ Technique

OPEN

19

For the skin flap procedure/amputation CLOSED technique,

place the bandage ________ removing the tourniquet

BEFORE

20

What is the average survival time for

animal post digit amputation?

2 years

21

Some cattle never recover from digit amputation

due to rapid breakdown of supporting structures

such as:

Soft tissue

Cruciate ligaments

Interdigital ligaments

Flexor tendons

22

Digit amputation is LESS successful on:

_________ digit of the front limb

and

__________ digit of hind limb

 

due to increased stress on the surviving digit

Digit amputation is LESS successful on:

MEDIAL digit of the front limb

and

LATERAL digit of hind limb

 

due to increased stress on the surviving digit

23

There is an ________ relationship

between success of amputation surgery

and increased body weight

inverse

24

ACUTE septic arthritis of the DIJ is rare

and usually presents _______ weeks

after having intra-articular lavage/antibiotics,

or even systemic abx.

4.4 weeks

(range= 1d - 24w)

25

This tool is used to create the arthrotomy

during a facilitated ankylosis procedure

Trephine

26

For a facilitated ankylosis procedure,

after using a trephine to create the arthrotomy,

you must culture the ___________

subchondral bone

27

For a facilitated ankylosis procedure

after culturing the subchondral bone,

you must remove all infected bone and cartilage

with this tool

Curette

28

For a facilitated ankylosis procedure,

after removing infected tissue with a curette,

the last and most important step is 

LAVAGE!!

29

For septic arthritis of the COFFIN joint,

the cement block is placed on the

________ digit,

and bandages are placed between flushes

sound digit

30

Facilitated Ankylosis vs. Amputation:

Which has a higher complication rate

for the lateral hind digit?

Amputation has higher complications for lateral hind digit