Osteomyelitis

Question 1

what are the 2 sub-categories of osteomyelitis?

Answer 1

• hamatogenous
• non-haematogenous

Question 2

what is the cause of haematogenous osteomyelitis?

Answer 2

bacteraemia
usually monomicrobial

Question 3

what type of osteomyelitis are children most likely to suffer from?

Answer 3

haematogenous osteomyelitis

Question 4

what is the most common type of haematogenous osteomyelitis that adults suffer from?

Answer 4

vertebral osteomyelitis

Question 5

what are the risk factors for haematogenous osteomyelitis?

Answer 5

• sickle cell anaemia
• IVDU
• immunosuppression - from mediacation or HIV
• infective endocarditis

Question 6

what is the cause of non-haematogenous oesteomyelitis?

Answer 6

• results from contiguous spread of infection from adjacent soft tissues to the bone
  OR
• from direct injury/trauma to bone
  usually polymicrobial

Question 7

what is the most common type of oesteomyelitis that adults suffer from?

Answer 7

non-haematogenous oesteomyelitis

Question 8

what are the risk factors for non-haematogenous oesteomyelitis?

Answer 8

• diabetic foot ulcers/pressure sores
• diabetes mellitus
• peripheral arterial disease

Question 9

what is the most common causative microbe in osteomyelitis?

Answer 9

staph. aureus

Question 10

what is the most common microbe in osteomyelitis in patients with sickle cells anaemia?

Answer 10

salmonella

Question 11

what investigation is done in osteomyelitis?

Answer 11

MRI

Question 12

how is osteomyelitis managed?

Answer 12

1. flucloxacillin for 6 weeks
2. clindamycin if penicillin-allergic