ANATOMY
Unit 4 Notes:Bone Injury
(1) Bone Injury(1) Bone Injury
• Increased weight on bone/joint.
• Irregular movement/manipulation…– Twisting– Rotation– Bending
(2) Comminuted Fractures(2) Comminuted Fractures
- Bone fragments into 3 or more pieces
- Common in aged people, when bones are more brittle
(3) Spiral Fractures(3) Spiral Fractures
- Ragged diagonal break
- Result of excessive twisting forces
- Common sports fracture
(4) Depressed Fractures(4) Depressed Fractures
- Portion of broken bone pressed inward
- Typical skull fracture
(5) Transverse Fractures(5) Transverse Fractures
- Bone breaks straight through bone (perpendicular)
- Clean Break
(6) Oblique Fractures(6) Oblique Fractures
- Bone breaks on diagonal
- Clean break
(7) Open Fractures(7) Open Fractures
- Bone breaks and pierces skin
- Common in forearm and shin (leg)
(8) Compression Fractures(8) Compression Fractures
- Bone is crushed
- Common in porous bones (due to osteoporosis)
- Common in vertebral column
(9) Epiphyseal Fractures(9) Epiphyseal Fractures
- Epiphysis separates from diaphysis along epiphyseal plate
- Usually occurs where cartilage cells are dying and calcifying
(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