Bone + joint infection

Question 1

Which bacteria is the most common cause of bone and joint infections?

Answer 1

Staphylococcus aureus

Question 2

What is Pott’s disease?

Answer 2

Tuberculosis infection of the spine

Question 3

What is infection of the bone called?

Answer 3

Osteomyelitis

Question 4

What is infection of the joint called?

Answer 4

Septic arthritis

Question 5

In bone infections, the initial infection is localised to which region of the bone?

Answer 5

Cortical region

Question 6

What is the term for necrotic bone tissue from chronic osteomyelitis?

Answer 6

Sequestrum

Question 7

What is the term for new bone formation outside the sequestrum?

Answer 7

Involucrum

Question 8

Why do infections develop more easily on prosthetic joints?

Answer 8

Presence of a biofilm - organic matrix allows bacteria to adhere to the surface of the prosthetic

Question 9

What is the duration of antibiotics given for bone / joint infections?

Answer 9

2-6 weeks IV, then 4-6 weeks oral