Septic Arthritis Flashcards

1
Q

What is the most common organism to cause septic arthritis overall?

A

Staph aureus

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2
Q

What is the most common organism to cause septic arthritis in young adults?

A

Neisseria gonorrhoeae

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3
Q

What is the most common location of septic arthritis in adults?

A

Knee

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4
Q

What are the presenting features of septic arthritis?

A

*acute, swollen joint
»restricted movement in 80% of patients
»examination findings: warm to touch/fluctuant

*fever: present in the majority of patients

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5
Q

What investigations are done in suspected septic arthritis?

A
  • Synovial fluid sampling obligatory (before abx given)
  • Blood cultures
  • joint imaging
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6
Q

What is the management of septic arthritis

A
  • intravenous antibiotics which cover Gram-positive cocci are indicated. The BNF currently recommends flucloxacillin or clindamycin if penicillin allergic
  • antibiotic treatment is normally be given for several weeks (BNF states 6-12 weeks)
  • needle aspiration should be used to decompress the joint
  • arthroscopic lavage may be required
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