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