Bone fractures and repair

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Last updated 1:31 AM on 6/22/26
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12 Terms

1
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Two types of fracture

Simple and compound

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Simple fracture

stays in the body

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compund fracture

bone pericied the skin and you can see it

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Two types of repair

closed reduction and open reduction

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closed reduction

Bone is put in orignal positon and a cast or splint is used

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open reduction

ORIF with surgery then cast

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bleeding and inflammation in the bone is a _____

Hemorrage

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Steps of bone repair in the body from one to four

  1. Inflammation

  2. Soft callus

  3. Hard callus

  4. Remodeling

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Inflammation phase

  • A Hematoma forms

  • Macrophages and other cells clear the debris and initiate healing

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Soft callus phase

  • Cell division is triggered

  • Growth of new blood vessels

  • chondrocytes secrete collagen

  • fibrocartillage is formed that forms soft callus

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Hard Callus phase

  • endochondrial ossification

  • Woven bone replaces soft callus

  • Hard callus forms around the broken fragments of the bone

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Remodeling phase

  • Woven bone is replaced by cortical bone