infections of bones and joints

Question 1

which condition may predispose to osteomyelitis infection by salmonella?

Answer 1

sickle cell disease

Question 2

which pathogen may cause osteomyelitis (travel/foreign born)?

Answer 2

Brucella

Question 3

which pathogen may cause osteomyelitis with a prosthesis?

Answer 3

S. epidermis

Question 4

which pathogen may cause osteomyelitis with children under 5 (rare in countries with Hib vaccination programme)?

Answer 4

H. influenzae

Question 5

what condition can predispose to osteomyelitis infection of E.coli with oder people?

Answer 5

UTI

Question 6

what are the two organisms that are most commonly responsible for osteomyelitis?

Answer 6

S. aureus (>80%)
S. pyogenes (~5%)
(in some countries M. tuberculosis)

Question 7

what are some symptoms and signs of osteomyelitis (4)?

Answer 7

• painful swollen site
• fever
• reduced movement (may only be sign in very young)
• paraplegia (only in later stages)

Question 8

what is the main combination of drugs used for osteomyelitis?

Answer 8

flucloxacillin and fucidin

or fucidin/erythromycin or fucidin/rifampcin

Question 9

what are three factors which can cause predisposition to septic arthritis?

Answer 9

rheumatoid arthritis
injection of joint
prosthetic joint

Question 10

what are some of the most common organisms that cause septic arthritis?

Answer 10

S.aureas
S. progenies
S. epidermis
M. tuberculosis
salmonella
brucella

Question 11

what are three investigations used to diagnose septic arthritis (and osteomyelitis)?

Answer 11

blood culture
joint aspirate
joint X-ray

Question 12

what antibiotics are used to treat septic arthritis/

Answer 12

the same as osteomyelitis!

flucloxacillin/fucidin or fucidin/erthromycin

Question 13

what is Reiter’s syndrome associated with?

Answer 13

chlamydial infection

Question 14

what joint is inflamed with Reiter’s syndrome

Answer 14

sacroiliac joint