orthopaedic infections Flashcards
what are the risk factors for osteomyelitis?
diabetes
immunosuppression
surgical contamination
penetrating injury
what can cause the infection of the bone to develop?
haematogenous spread
peripheral vascular disease
prosthesis
what organisms can cause acute osteomyelitis?
staph aureus
streptococci
h.influenze
what organisms can cause chronic osteomyelitis?
TB
pseudomonas aeroigenosa
salmonella
ecoli
what is Potts disease?
TB infective spine disease that causes crush fracture of thoracic spine
what is salmonella osteomyelitis a complication of?
sick cell anaemia
what investigation is crucial for osteomyelitis ?
MRI
what is the treatment for acute osteomyelitis?
flucloxacillin (6 weeks) IV
clindamycin if allergic
vancomycin IV is MRSA
what is the treatment for chronic osteomyelitis?
antibiotics and debridement
flucloxicillin
MRSA or penicillin allergy:
co-trimoxazole or doxycycline
in prosthetic join infections, what causative organisms form early post operative?
staph aureus
in prosthetic join infections, what causative organisms form delayed post operative?
staph epidermis
propionbacterium acnes
in prosthetic join infections, what causative organisms form late?
staph aureus or E.coli
in early post operative infection, what is the time/route/presentation?
time: 0-3 months
route: perioperative
presentation: sepsis, warm joint with signs of effusion
in delayed post operative infection, what is the time/route/presentation?
time: 2-24 months
route: preoperative
presentation: persistent joint pain, loosening of prosthetic
in late operative infection, what is the time/route/presentation?
time: >24 months
route: haematogenous
presentation: acute or sub acute