Osteomyelitis

Question 1

Subclassifications of osteomyelitis?

Answer 1

Haematogenous (from bacteraemia)
Non-haematogenous (continguous spread from soft tissue near bone or direct trauma to bone)

Question 2

Features of haematogenous osteomyelitis?

Answer 2

Usually monomicrobial
Most common form in children

Question 3

Features of non-haematogenous osteomyelitis?

Answer 3

Usually poly-microbial
Most common form in adults

Question 4

Risk factors for haematogenous osteomyelitis?

Answer 4

Sickle cell
IVDU
Immunosuppression (HIV, meds)
Infective endocarditis

Question 5

Risk factors for non-haematogenous osteomyelitis?

Answer 5

Diabetic foot ulcers/pressure sores
DM
PAD

Question 6

What type of haematogenous osteomyelitis is the most common form in adults?

Answer 6

Vertebral osteomyelitis

Question 7

What is the most common causative organism for osteomyelitis (non-SCA)?

Answer 7

S. aureus

Question 8

What is the most common causative organism for osteomyelitis (SCA)?

Answer 8

Salmonella (non-typhoid)

Question 9

What imaging modality is used for osteomyelitis?

Answer 9

MRI

Question 10

Mx of osteomyelitis?

Answer 10

Flucloxacillin (6 wks)
Clindamycin if pen allergic