Factors affecting fracture healing

Question 1

Name 5 things that promote bone healing ?

Answer 1

1 Good immobilisation.
2 Thyroid hormone.
3 Oxygen/ good blood supply.
4 Young age
5 Physical exercise.

Question 2

Name 5 things that prevent bone healing ?

Answer 2

1 Corticosteroids
2 Motion
3 Vitamins A and D in high doses.
4 poor blood supply
5 Comminution.

Question 3

What is the definition of non union ?

Answer 3

Failure of fracture to heal within the expected time frame (9 months).

Question 4

What is the definition of delayed union ?

Answer 4

A slower than expected progression towards union.

Question 5

What is the difference between viable and non viable non union ?

Answer 5

No viable non union does not have the blood supply to heal example necrosis.