Septic arthritis Flashcards
Most common causative agent of septic arthritis is….
S. aureus
Other common causes of septic arthritis
Disseminated gonococcal
Gram negative bacteria
non-group A strep
Group B strep common affects which joints in septic arthritis
Sternoclavicular
Sacroiliac
The most commonly affected joint in septic arthritis is the…
Knee
Arthritis-dermatitis syndrome can occur with ________ infection and involves _______
Occurs in gonococcal infection:
- Dermatitis
- Tenosynovitis
- Migratory polyarthritis
Presentation of septic arthritis
Hot, red, swollen joint (monoarticular)
Pain on weight bearing, restricted movement.
Systemic
- Fever, myalgia
In STI: abnormal discharge, dysuria, pelvic pain,
Definite diagnosis of septic arthritis is…
Joint aspiration and microscopy
Initial investigations for septic arthritis
Bloods
- FBC
- Culture (at least 2)
NAAT for in STI suspicion
Gold standard imaging in septic arthritis is…
MRI/ CT
First line therapeutic agent for septic arthritis (s.aures) is…
IV flucloxacillin
4 weeks
Second line therapeutic for staph septic arthritis is…
Teicoplanin
First line management for gonococcal septic arthritis is…
IM ceftriaxone
