Week 0 - Healing of Fractures

Question 1

What property of bones is important in the healing of fractures?

Answer 1

dynamic property

Question 2

adult bones remodel in response to what?

Answer 2

bone stress, age, fractures

Question 3

The _____ in children is much thicker, more vascular, and more rapidly able to form ____ at the site of fracture compared to in adults

Answer 3

the periosteum in children is much thicker, more vascular, and more rapidly able to form callus at the site of fracture compared to in adults

Question 4

what are the 3 stages of fracture healing?

Answer 4

1. ) reactive phase
2. ) reparative phase
3. ) remodelling phase

Question 5

when do blood clots begin to form after a fracture?

Answer 5

6 - 8 hours

Question 6

as the granulation tissue becomes denser, ___ begins to form

Answer 6

cartilage

Question 7

macroscopic evidence of bone healing after a fracture is seen as little as ___ days and on average ___ days after injury

Answer 7

7 days ; 13 days

Question 8

what is the slowest phase in the healing of bones after a fracture?

Answer 8

remodelling phase

Question 9

what is the remodelling phase?

Answer 9

when protruding bone surfaces are gradually removed, and healed bone especially in younger individuals, eventually assumes its normal contour

Question 10

can you determine the exact time of injury by examining it?

Answer 10

No, there are many variables that would affect bone healing process time.

nutrition, age, position (rotation, angulation, displacement), thickness of bone, vascularity @ fracture site, infection, underlying bone disease (eg, cancer, rickets, scurvy), periosteal integrity, soft tissue interposition, simple vs communuted fracture, previous fracture @ same site, atherosclerosis (hardening of arteries), intercurrent illnesses (illnesses occurring during same time frame as fracture)