Bone Biology and Fracture Healing

Question 1

what are the functions of bone?

Answer 1

Question 2

How much of the dry weight of bone is mineral?

Answer 2

Question 3

Describe flat bones, cuboidal bones, and long bones

Answer 3

Question 4

How do equine long bones have a mechanical advantage compared to other species?

Answer 4

Question 5

Answer 5

Question 6

What structures are created durding appositional bone growth?

Answer 6

Question 7

what type of bone growth results in increased bone thickness?

Answer 7

appositional bone growth

Question 8

Describe cortical bone

Answer 8

Question 9

Describe periosteum

Answer 9

Question 10

Describe cancellous/spongy/trabecular bone

Answer 10

Question 11

which layer of the periosteum is metabolically active and responsible for fracture healing?

Answer 11

Inner cambium layer

Question 12

what is this?

Answer 12

Load-deformation curve

Question 13

Answer 13

Question 14

Describe elastic region and plastic region

Answer 14

elastic - bone maintains capacity to return to its original shape after removal of load
plastic - bone will not return to its original shape when load is removed

Question 15

what is the yield point in a load deformation curve?

Answer 15

end of elastic deformation

Question 16

how is stiffness calculated in load-deformation curve?

Answer 16

slope of curve in elastic region

Question 17

Answer 17

Question 18

what is biologic fracture healing?

Answer 18

physiologic process that forms callus to bridge fracture site

Question 19

what is structural fracture healing?

Answer 19

related more to what is physically done during surgery

Question 20

what are the 3 stages of biologic fracture healing?

Answer 20

inflammatory phase
repair phase
remodeling phase

Question 21

Descrive the inflammatory phase

Answer 21

Question 22

Descrive the repair phase

Answer 22

Question 23

what is the longest phase of fracture healing?

Answer 23

remodeling phase