Bone Healing Flashcards Preview

Conditions: MSK > Bone Healing > Flashcards

Flashcards in Bone Healing Deck (18)
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1
Q

What is the fancy name given to bone healing?

A

Secondary intention

2
Q

What is the definition of clinically healed?

A

Able to weight bare

3
Q

What are the 3 phases of bone healing?

A

Reactive

Repairative

Remodelling

4
Q

How long is the reactive phase?

A

24-72 hours

5
Q

What happens in the reactive phase?

A

Bleeding

6
Q

What does bleeding in the reactive phase allow?

A

Inflammatory cells and growth factors to enter the break

7
Q

What do the inflammatory cells form in the reactive phase?

A

A granuloma

8
Q

What aspect of the reactive phase stimulates osteoclasts/blasts?

A

The accumulation of immune cells and growth factors

9
Q

How long does the repairative phase last?

A

4-40 days

10
Q

What happens to osteoblasts in the repairative phase

A

Proliferation –> collagen development

11
Q

What is the name of the collagen when it initially develops during the repairative phase?

A

Primary callus

12
Q

What does the primary callus develop into?

A

It hardens and forms the secondary hard callus

13
Q

How long does the remodelling phase last?

A

25+ days

14
Q

What type of healing does natural and surgical nailing follow?

A

Callus

15
Q

What type of healing does internal fixation follow?

A

Bone healing = skips callus formation

16
Q

What does internal fixation bone healing allow?

A

Faster rehab time

17
Q

What is the healing time of natural healing and surgical nailing vs internal fixation?

A

Fast vs slow

18
Q

Which healing type carries the highest –> lowest risk

A

Internal fixation –> nailing –> natural