MSK

Question 1

How many vertebra and spinal nerves in the coccyx?

Answer 1

4 fused and 1 spinal nerve

Question 2

What is the most commonly fractured wrist bone?

Answer 2

71% scaphoid

Question 3

What bone connects the calcaneus to the metatarsals?

Answer 3

cuboid

Question 4

What is the fabella?

Answer 4

sesmoid bone in the lateral head of gastroc. lateral condyle

Question 5

What part of the tibia connects to the patellar ligament?

Answer 5

tibial tuberance

Question 6

What are the 4 hallmarks of OA?

Answer 6

joint space narrowing
osteophytes
subchondral sclerosis
subchondral cyst formation

Question 7

What are the hallmarks of RA/

Answer 7

symmetric bilateral proximal involvment of hands

periarticular osteopenia
symmetric joint space narrowing
marginal erosions
joint subluxation
fusion of carpals

Question 8

What are the 4 major spondyloarthropathies?

Answer 8

psoriatic arthritis
ankylosing spondylitis
IBD
Reiter’s

Question 9

the spondyloarthropathies mainly effects which part of the skeleton?

Answer 9

axial

Question 10

what is the hallmark for spondyloarthropathies?

Answer 10

enthesopathy- proliferative bone formation at insertion of ligamens/tendons

Question 11

What are thin vertically oriented perivertebral calcifications of the spine?

Answer 11

syndesmophytes

bamboo spine is a characteristic of ankylosing spondylitis

Question 12

Sclerosis and fusion of the spondyloarthropathies can be symmetric or asymmetric…which ones are asymmetric?

Answer 12

symmetric= AS and IBD
Asymmetric= psoriasis and reiter's

Question 13

What is it called if a ligament tears off a piece of bone?

Answer 13

avulsion

Question 14

What is the salter harris types of fractures?

Answer 14

I- slipped
II- Above
III- Low
IV- Through
V-cRush

IV and V impair physeal growth

Question 15

Suspicious fractures for child abuse have what characteristics?

Answer 15

metaphyseal corner/bucket handle from repetitive acceleration/deceleration

periosteal hemorrhage/

Question 16

Suspicious child abuse fractures take place where?

Answer 16

femur, elbow, shoulder, ribs, skull, finger

Question 17

What are the suspicious patterns of child abuse fractures?

Answer 17

multiple of varying ages

fractures inappropriate for developmental age

Question 18

T_F—skull fractures are wavy and sutures are straight lines?

Answer 18

false- other way around

Question 19

What are the 4 radiographic signs of osteomyelits?

Answer 19

1. destruction of bone
2. periosteal reaction
3. Soft tissue swelling
4. +/- sub-q air

Question 20

What is osteomyelitis often difficult to differentiate from?

Answer 20

charcot

Question 21

What is A chronic (sub-acute) abscess of bone surrounded by dense fibrous tissue and sclerotic bone.

Answer 21

Brodies abscess

Question 22

What is the best imaging for osteomyelitis?

Answer 22

MRU- sensitive and specific

Bone scan can also be specific

Question 23

what are some signs of osteosarcoma on imaging?

Answer 23

hair on end spiculated periosteal reaction

Wide zone of transition

Codman’s triangles

Question 24

What is the difference between colles and smith wrist fractures

Answer 24

colles- dorsal displacement of distal fragment

smith is volar displacement

Question 25

ankle pain fracture or syndesmosis—what else should we worry about?

Answer 25

high fracture on fibula

Question 26

what does avascular necrosis of the femoral head look like?

Answer 26

Flattening of the femoral head, may see sclerosis or subchondral lucency.

Question 27

What is a galeazzi fracture?

Answer 27

radial shaft fracture with dislocation of the distal radioulnar joint

Question 28

Bankart vs. hill sachs?

Answer 28

bankart- inferior glenoid rim

Hill-sachs- humeral head

Question 29

Pencil in cup is pathognomonic for what?

Answer 29

psoriatic arthritis