R/O - Basics of fractures I

Question 1

how are trabeculae arranged in long bones?

Answer 1

• epiphysis: aligned with force

- diaphysis: spiral

Question 2

in angiogenesis post fracture, where do the vessels come from?

Answer 2

periosteum

Question 3

compression of bone leads to what type of remodeling?

Answer 3

bone formation

Question 4

distraction of bone leads to what type of remodeling?

Answer 4

cartilage

Question 5

where is the metaphysis?

Answer 5

in children - distal shaft, proximal to physis

Question 6

salter harris classification is based on severity of injury to the __________

Answer 6

physis

Question 7

what structure is the template for repair after a fracture?

Answer 7

periosteum

Question 8

can synovial fluid help or impair healing?

Answer 8

impair

Question 9

tonic seizures can lead to what type of shoulder dislocation?

Answer 9

posterior

Question 10

luxatio erecta indicates what type of shoulder dislocation? what is the main fear?

Answer 10

• arm held away from side

- brachial plexus injury

Question 11

what is the most common shoulder fracture?

Answer 11

• surgical neck

Question 12

distal humeral fracture is usually due to what injury mechanism?

Answer 12

FOOSH

Question 13

sail sign in an elbow dislocation means:

Answer 13

joint effusion

Question 14

how do you treat nursemaids elbow?

Answer 14

• pronate forearm
• press radius
• flex elbow