Radiology of MSK disorders

Question 1

What MSK structures can be viewed well and not so well on X-rays

Answer 1

Only good for bones (very good)

Question 2

What MSK structures can be viewed well and not so well on CT scans

Answer 2

Bones - very good

Cartilage, muscles, tendons/ligaments - good/okay

Question 3

What MSK structures can be viewed well and not so well on Ultrasound

Answer 3

Cartilage, muscles, tendons/ligaments = very good

Bones - NO

Question 4

What MSK structures can be viewed well and not so well on MRI

Answer 4

everything = VERY GOOD

Question 5

Which imaging modality has more radiation X ray or CT?

Answer 5

CT

Question 6

What are the classical imaging features of OA seen on X-ray?

Answer 6

Loss of joint space
Osteophyte formation
Sclerosis 
Subchondral cyst formation 
Subulaxation (partial dislocation)

Question 7

What key imaging features can be seen with degenerative changes to BONE?

Answer 7

Reduction in bone density
Osteophyte
Cysts
Sclerosis

Question 8

What key imaging features can be seen with degenerative changes to CARTILAGE?

Answer 8

Thinning/loss of cartilage

Reduction in joint space

Question 9

What key imaging features can be seen with degenerative changes to MUSCLE?

Answer 9

fatty infiltration
Muscle tear and scarring
Volume loss