1. ANATOMY
Unit 4 Notes:
Bone
Injury

2. (1) Bone Injury(1) Bone Injury
• Increased weight on bone/joint.
• Irregular movement/manipulation…
– Twisting
– Rotation
– Bending

4. (2) Comminuted Fractures(2) Comminuted Fractures
- Bone fragments into 3 or more
pieces
- Common in aged people, when
bones are more brittle

6. (3) Spiral Fractures(3) Spiral Fractures
- Ragged diagonal break
- Result of excessive twisting
forces
- Common sports fracture

8. (4) Depressed Fractures(4) Depressed Fractures
- Portion of broken bone pressed
inward
- Typical skull fracture

10. (5) Transverse Fractures(5) Transverse Fractures
- Bone breaks straight through
bone (perpendicular)
- Clean Break

12. (6) Oblique Fractures(6) Oblique Fractures
- Bone breaks on diagonal
- Clean break

14. (7) Open Fractures(7) Open Fractures
- Bone breaks and pierces skin
- Common in forearm and shin
(leg)

16. (8) Compression Fractures(8) Compression Fractures
- Bone is crushed
- Common in porous bones (due
to osteoporosis)
- Common in vertebral column

18. (9) Epiphyseal Fractures(9) Epiphyseal Fractures
- Epiphysis separates from
diaphysis along epiphyseal
plate
- Usually occurs where cartilage
cells are dying and calcifying

20. (10) Greenstick Fractures(10) Greenstick Fractures
- Bone breaks incompletely (like
a twig)
- Only one side of the shaft
breaks, other side bends
- Common in children, when
bones are more flexible