19/02

Question 1

What happens when methotrexate and trimethoprim are combined?

Answer 1

Can lead to life threatening pancytopenia

Question 2

What effects can compartment syndrome have on renal function?

Answer 2

Can lead to AKI
Muscle breakdown due to increased pressure results in myoglobin being released into blood stream

Deposition of myoglobin in the renal tubules leads to dark brown coloured urine that tests positive for blood

Question 3

What XR changes are seen in gout?

Answer 3

Joint effusion= early sign
Well defined punched out erosions
Sclerotic margins

Question 4

What is a Maisonneuve fracture?

Answer 4

Spiral fibular fracture that leads to disruption of the syndesmosis

Question 5

What is the weber classification of ankle fractures?

Answer 5

Type A
-below syndesmosis

Type B
-at the level of syndesmosis

Type C
- above syndesmosis- can get damage to syndesmosis

Question 6

What is the Z score for osteoporosis adjusted for?

Answer 6

Age
Gender
Ethnic factors

Question 7

What is the salter harris classification of fractures?

Answer 7

Used in children where the growth plate is involved

Question 8

What is the salter harris classification types?

Answer 8

1- fracture through physis only
2- fracture through physis and metaphysis
3- fracture through physis and epiphysis to include join
4- fracture through physis, metaphysis and epiphysis
5- crush injury involving physis

Question 9

What are risk factors for pseudogout?

Answer 9

Hyperparathyroidism
Low Mg
Low Phosphate
Wilsons disease

Question 10

What is the imaging modality of choice in osteomyelitis?

Answer 10

MRI