Septic arthritis

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Last updated 5:34 PM on 7/31/26
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11 Terms

1
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Mos common causative agent

S. aureus

2
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Incidence of H. influenzae has decreased due to

the vaccine

3
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Infection Sources

  • Trauma

  • Hematogenous

  • Osteomylitis

  • Soft tissue infections


4
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Clinical Presentation:

“red, hot, painful joint”


5
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IV drug users might contract

Pseudomonas

6
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4 independent variables

Transient synovitits VS septic arthritis

  • Fever

  • non-weight bearing

  • ESR >40

  • WBC > 12,000

Kocher Criteria

7
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DIFFERENTIAL DIAGNOSIS

Osteomyelitis

An acute haemarthrosis

Transient synovitis(irritable joint)

Gout and pseudogout

Rheumatic fever

8
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If gram –positive organisms are identified ,

Flucloxacillin

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If in doubt about causative bacteria, give

third generation cephalosporin

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Children less than 4 yr( if suspicion of H.Infl) treated with

Ampicillin.

11
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Indication of Surgical Drainage:

1-Joints that do not respond to antimicrobial therapy

2-. Any joint with limited accessibility, including the sternoclavicular or the hip joint

3-Patients with underlying disease, including diabetes, rheumatoid arthritis, immunosuppression, or other systemic symptoms, should be treated more aggressively with earlier surgical intervention