Wound, Bone and Joint infections Flashcards
what are the 3 most common causes of surgical site infections (SSIs)
s aureus
E coli
pseudomonas Aureginosa
how do SSIs present
pain, swelling, failure to heal
what is the Tx for a SSI cause by S Aureus
fluclox
what pre op measure can help reduce SSI risk from S Aureus
nasal decontamination
what are some RFs for septic arthritis
rheumatoid arth, osteoarth, diab, immunosupp
what is the most common causes of septic arth
S Aureus = 46%
Strep pyrogenes/pneumonia = 22%
how will septic arthritis present
1-2w history of red, panful, swollen joint with restricted movement
what inv will be ordered for suspected septic arth
blood cultures synovial fluid asp ESR CRP MRI
what finding from a synovial fluid aspiration will indicate septic arth
> 50 000 WBC/ml
what will an MRI show in septic arth
joint effusion, articular cartilage destruction
abscess
what is the treatment for septic arth
4-6w of IV Abx
drainage of joint
what are the main causes of vertebral osteomyelitis
staph A (48%), coag neg staph, G-ve rods
where does vertebral osteomyelitis typically affect
Lumbar region
how does vertebral osteomyelitis present
back pain, fever, neurological involvement
often triggered by disk insertion
what is the treatment for chronic osteomyelitis
radical debridement to living bone
