Exam 2: Septic Arthritis/ Physitis Flashcards Preview

RUSVM LASx PRACTICE QUESTIONS > Exam 2: Septic Arthritis/ Physitis > Flashcards

Flashcards in Exam 2: Septic Arthritis/ Physitis Deck (73)
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1

What 3 types of septic arthritis are seen in foals?

S, E, P

2

Which type of septic arthritis seen in foals usually only effects 1 site?

P-type

3

Which type(s) of septic arthritis seen in foals usually effects multiple sites?

S and E

4

What is the most common etiology of septic arthritis?

Bacterial

5

What is the greatest risk factor for septic arthritis/physitis in foals?

Failure of passive transfer

6

Why do you NEVER debride in cases of P-Type septic arthritis in foals?

Debridement damages the physis and causes premature closure!

7

What do you expect the cell count to be of synovial fluid analysis

in a foal with S or E-Type septic arthritis?

greater than 50,000

8

What do you expect the neutrophil percentage to be of synovial fluid analysis

in a foal with S or E-Type septic arthritis?

greater than 90% neutrophils

9

What abnormalties do you see on bloodwork in

cases of S or E-Type septic arthritis?

Increased fibrinogen ± leukocytosis

10

In cases of S or E-Type septic arthritis,

Fibrinogen is usually ______mg/dL with bone involvement

>900 mg/dL

11

What is the prognosis for septic arthritis in foals?

77% survival in foals

12

What are the iatrogenic risk factors for septic arthritis in adults?

Iatrogenic: synovial sx, fracture repair, arthrocentesis

13

This pathogen is seen as the causative agent in a third of the iatrogenic cases

of septic arthritis in adults, especially in arthrocentesis

Staphylococcus spp.

14

What is the gold standard for diagnosis of septic arthritis?

Microbiology

15

At what age is S-type septic arthritis seen in foals?

Less than 1 week old

16

What solutions should (and shouldn't) be used for lavage in a case of septic arthritis?

USE: Balanced electrolyte solution (LRS, Normosol) +/- DMSO

Do NOT add chlorhexidine, povidone iodine- cytotoxic and unhelpful

Do NOT give 5% dextrose solution- will be feeding the bacteria!

17

What organism is most commonly isolated in a case of septic arthritis?

Staphylococcus spp.

18

T/F: In a case of septic arthritis in adults and foals,

it is important to check the umbilicus as a source of infection

FALSE

Only check umbilicus in foals

19

When is it acceptable to stop antibiotic treatment for septic arthritis?

Minimum 30 days and 2 weeks beyond resolution of clinical signs (whichever is longer)

20

T/F: Arthrotomy is contraindicated in the treatment of septic arthritis in cattle.

False

21

What is the mainstay of treatment for septic arthritis?

LAVAGE- Early and often; large volumes (5-10 liters)

22

What type of septic arthritis in foals typically presents with swelling, but usually without effusion?

P-Type

23

What are the three types of septic arthritis in foals?

S, E, P (Synovial, Epiphysis, Physis)

24

With what type of septic arthritis in foals might you be able to see subchondral lysis on radiographs?

E-Type

25

This is the most distal nerve block performed in the horse:

Palmar digital nerve block

26

Horses undergoing arthrodesis of this joint have an 80% prognosis for return to work:

Hindlimb pastern arthrodesis

27

This is the primary collagen found in tendons:

Type 1

28

Which type of septic arthritis seen in foals usually only effects 1 site while the others effect multiple sites?

P-type

29

Which type(s) of septic arthritis seen in foals usually effects multiple sites?

S and E-Types

30

What is the most common etiology of septic arthritis?

Bacterial