Fracture Healing

Question 1

What are the 5 stages of bone healing?

Answer 1

Haematoma
Inflammatory reaction
Callus formation
Consolidation
Remodelling

Question 2

What occurs in the first stage of healing?

Answer 2

Haematoma: tissue damage and bleeding at the fracture site

Question 3

What occurs in the second stage of healing?

Answer 3

Inflammatory reaction: inflammatory cells appear in the haematoma

Question 4

What occurs in the 3rd stage of healing?

Answer 4

Callus: cell population changes to osteoblast and osteoclasts: dead bone is mopped up and woven bone appears in the fracture callus

Question 5

What occurs in the 4th stage of healing?

Answer 5

Consolidation: woven bone is replaced by lamellar bone; the fracture has united

Question 6

What occurs in the 5th stage of healing

Answer 6

Remodelling: The newly formed bone is remodelled to resemble the normal structure.