Musculoskeletal III (joints)

Question 1

main types of joint diseases
according to our curriculum

Answer 1

1. rheumatoid
2. osteoarthritis
3. gout

Question 2

articular erosion patterns

Answer 2

1. marginal erosion = rheumatoid
2. subchondral erosion = osteoarthritis
3. Ecentric erosion = gout
4. destruction and cartilage loss = infection

Question 3

which joitn disease can affect bone density

Answer 3

1. rheumatoid = Periarticular osteopenia
2. osteoarthritis = subcondral sclerosis

Question 4

which joint disease can cause bone formation

Answer 4

1. ankylosing spondilitis
2. psoriatic arthritits

Question 5

which joint disease affect cartilage?

Answer 5

1. degenerative disease –> non-uniformally
2. inflammatory disease –> uniformally

Question 6

according to distribution pttern of joint disease, which one affect DIP joint?

Answer 6

1. osteoarthritis
2. psoriatic arthritits

Question 7

according to distribution pttern of joint disease, which one affect all joints of hand excet DIP joint?

Answer 7

rheumatoid

Question 8

lets talk about osteoarthritis

Answer 8

1. affect any synovial joint
2. sclerosis + osteophyts
3. NO erosions

Question 9

about osteomyelitis:
there are two forms of osteomyelitis …… and ….. , …… is more common and can be ….. or ….. .

Answer 9

there are two forms of osteomyelitis pyogenic and non pyogenic , pyogenic is more common and can be acute or chronic .

Question 10

osteomyelitis is more common in [male/female]

Answer 10

male

Question 11

what is the common age of osteomyelitis

Answer 11

any age but common between 2 - 12y

Question 12

location of osteomyelitis

Answer 12

lower limb
vertebrea (lumbar>thoracic>cervical)

Question 13

radiological finding of osteomylitis

Answer 13

necrosis –> sequestrum (pice of dead bone) + Cloak (space within dead bone)
formation –> involucrum
by CT –> intraosseus gases

Question 14

US has low sensitivity so it’s not helpful for bone/joint diseases (T/F)

Answer 14

false
for soft tissue, abscess, cellulitis and joint effusion … etc

Question 15

pathognomonic for subacute pyogenic osteomyelitis

Answer 15

Brodie abscess lytic lesion surrounded by thick rim of sclerosis with lucent tortuous channel extending toward growth plate prior to physeal closure

Question 16

cause acute kyphosis

Answer 16

TB spine

Question 17

special name of TB spine

Answer 17

Tuberculous spondylitis, also known as Pott disease

Question 18

TB spine cause acute kyphosis and bony formation, angulation, cord compression , damaged discs (T/F)

Answer 18

FALSE discs are preserved (unlike pyogenic infections)

Question 19

different between TB and pyogenic spondylitis

Answer 19

OMG … sory it’s soo boring