Acute Septic Arthritis Flashcards Preview

Conditions: Rheumatology > Acute Septic Arthritis > Flashcards

Flashcards in Acute Septic Arthritis Deck (19)
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1
Q

What are the routes of infection is septic arthritis?

A

Penetrating wound
Bone abscess rupture
Haematogenous spread

2
Q

Two types of gram +ve bacteria in septic arthritis?

A

Staph aureus

Strep pyogenes

3
Q

Two types of gram -ve bacteria in septic arthritis?

A

E.Coli

Haemophilus influenza

4
Q

Pathophysiology of septic arthritis?

A

Acute synovitis

Purulent joint effusion

5
Q

What causes the acute synovitis?

A

Bacterial toxin

Cellular enzymes

6
Q

What are the chronic results of total distruction of articular cartilage and partial recovery

A

OA

Ankylosis (google)

7
Q

Clinical features of a child with ASA?

A

Irritability

Resistance to movement

Acute pain in SINGLE LARGE JOINT

Reluctant to move

8
Q

General symptoms of ASA?

A

Fever
Tachycardia
Malaise

9
Q

Child joints affected in ASA?

A

Large joint

10
Q

Adult joints affected in ASA?

A

Superficial joints

  • Ankle
  • Wrist
  • Knee
11
Q

What blood investigations for suspected ASA?

A

Culture
ESR
WCC

12
Q

What other investigations?

A

X ray
USS

ASPIRATION!!!!

13
Q

What investigation should be done to rule out gout?

A

Birefringence on polarised microscopy

14
Q

If non septic, what should be done before starting treatment?

A

Aspiration

15
Q

What should treatment of suspected sepsis be?

A

SEPSIS 6

16
Q

What is the sepsis 6?

A

ALL PERFORMED WITHIN 1 HOUR

  • IV Fluids
  • Oxygen
  • Broad spectrums
  • Lactate
  • Blood culture
  • Catheterisation
17
Q

What is the treatment of gram +ve septic arthritis?

A

Vancomycin

18
Q

What is the antibiotic treatment of gram -ve arthritis?

A

Ciprofloxacin

+cephalosporins if E coli

19
Q

What should be done to the joint as well as antibiotics

A

Aspiration