bone and joint infection Flashcards
What is the most useful blood test when it comes to inflammation
CRP
When does acute osteomyelitis occur ?
Mostly port-traumatic/open=innoculation
Then children or immunosupressed= haematogenous
What buy causes acute osteomyelitis?
Staph aureus
haemophilus in children
What is involucrum?
a layer of new bone growth outside existing bone seen in pyogenic osteomyelitis
How can septic arthritis originate?
from innoculation
from metaphysical spread
direct haematogenous
Where does septic arthritis typically affect?
One large joint e.g. hip or knee
If there is pus…
let it out
What is crepitus?
the grating, crackling or popping sounds and sensations experienced under the skin and joints or a crackling sensation due to the presence of air in the subcutaneous tissue.
What antibiotics are used for soft tissue infections?
Flucloxacillin and benzypenicillin
If infected arthroplasty what tests are used?
CRP
Joint aspiration
Bone scan ( Technetium 99)
X ray
Demarcation at the cement bone interface is characteristic of…
infection ( because the “bugs” have loosened it)
Prophylaxis for surgery in soft tissue infections
Clean air theatre-laminar flow
local antibiotics
systemic antibiotics
duration of surgery
What antiboditocs could be used as soft tissue infection prophylaxis
Co-amoxiclav
fluclox and gent- renal problems as a result
Clindamycin
Co-trimaxole
Which bugs are often the cause behind soft tissue infection?
SA
SE
