Lower Limb Imaging Flashcards
When examining images in MSK, we use AABCSS, which 2 of the following are the As?
1 - A = adequacy
2 - A = autonomy
3 - A = alignment
4 - A = asymmetry
1 - A = adequacy
- cover area required, correct patient position
3 - A = alignment
- are bones aligned the correct way
When examining images in MSK, we use AABCSS, what does the B stand for?
1 - B = bilateral symmetry
2 - B = bony landmarks included
3 - B = bones
4 - B = both limbs imaged
3 - B = bones
- draw around cortical bone looking for break
- look inside trabecular bone for tumours or breaks
When examining images in MSK, we use AABCSS, what does the C stand for?
1 - C = cartilage or joint
2 - C = contrast
3 - C = complete image
4 - C = correct patient
1 - C = cartilage or joint
- narrowing of the joint
- aligned and even throughout
When examining images in MSK, we use AABCSS, which 2 of the following do the SS stand for?
1 - S = superior and inferior views
2 - S = satisfaction of search
3 - S = swelling and oedema
4 - S = soft tissue
2 - S = satisfaction of search
- double check everything, even if there is a very obvious fracture
4 - S = soft tissue
- swellings
- tissue damage that indicate bone damage
In the image below, is the left or right an child’s bone?
- right
- you can see the epiphyseal plate (growth plates)
- gaps may appear in bones, but this is cartilage that has not become bone yet
Which of the following is the mnemonic used to identify joint changes on radiography in patients with osteoarthritis?
1 - LOAD
2 - LOSS
3 - LOSE
4 - LEAN
2 - LOSS
L = loss of joint space
O = osteophytes
S = subchondral sclerosis (thickening of the bone)
S = subchondral cyst
If we were to image both knees of a patient with osteoarthritis, would we see loss of joint space bilaterally?
- unlikely to happen
What is the most likely diagnosis of the image below?
1 - osteoarthritis
2 - RA
3 - gout
4 - SLE
3 - gout
- erosion of the joint
- swelling around the joint
What is the most likely diagnosis of the image below?
1 - osteoarthritis
2 - osteomyelitis
3 - gout
4 - charcot foot
4 - charcot foot
- common in diabetes
- progressive degenerative/destructive joint disorder
- abnormal pain and proprioception
- deformity but no pain or raised temperature
What is the most likely diagnosis of the image below, where the bone has been eroded away?
1 - osteoarthritis
2 - osteomyelitis
3 - gout
4 - charcot foot
2 - osteomyelitis
- common in diabetes and foot ulcers
- only seen after 10-14 days
What is the most likely diagnosis of the image below?
1 - osteoarthritis
2 - osteomyelitis
3 - dislocation
4 - lytic bony metastases
4 - lytic bony metastases
What is the most likely diagnosis of the image below?
1 - osteoarthritis
2 - osteomyelitis
3 - enchondroma
4 - lytic bony metastases
3 - enchondroma
- benign tumour from cartilage, no treatment needed
- typically found incidentally
- carpals, metacarpals or phalanges
- more prone to fracture
Is the left or right image an adult image?
- right
What type of fracture can we see in the image below?
1 - colles fracture
2 - greenstick fracture
3 - scaphoid fracture
4 - torus fracture
1 - colles fracture
- fracture of the distal forearm in which the broken end of the radius is bent backwards.
What type of fracture can we see in the image below, that occurred following a fall on an outstretched hand (FOOSH)?
1 - colles fracture
2 - greenstick fracture
3 - scaphoid fracture
4 - torus fracture
3 - scaphoid fracture
- line across the scaphoid bone
- can press on snuffbox to elicit pain