“Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular...
-
Upload
lilian-hoover -
Category
Documents
-
view
217 -
download
0
Transcript of “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular...
![Page 1: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/1.jpg)
“Notes: Bone Injury & Repair”
![Page 2: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/2.jpg)
(1) Bone Injury(1) Bone Injury
• Increased weight on bone/joint
• Irregular movement/manipulation– Twisting– Rotation– Bending
![Page 3: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/3.jpg)
![Page 4: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/4.jpg)
(2) Types of Fractures(2) Types of Fractures
Comminuted:-Bone fragments into 3 or more pieces-Common in aged people, when bones are more brittle
Spiral:-Ragged break -Result of excessive twisting forces-Common sports fracture
Depressed:-Portion of broken bone pressed inward-Typical skull fracture
![Page 5: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/5.jpg)
Fracture Types Continued…Fracture Types Continued…
Transverse-Bone breaks straight through bone (perpendicular)-Clean Break
Oblique-Bone breaks on diagonal-Clean break
Open-Bone breaks and pierces skin-Common in forearm and shin (leg)
![Page 6: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/6.jpg)
Compression:-Bone is crushed-Common in porous bones (due to osteoporosis)-Common in vertebral column
Epiphyseal:-Epiphysis separates from diaphysis along epiphyseal plate-Usually occurs where cartilage cells are dying and calcifying
Greenstick:-Bone breaks incompletely (like a twig)-Only one side of the shaft breaks, other side bends-Common in children, when bones are more flexible
Fracture Types Continued…Fracture Types Continued…
![Page 7: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/7.jpg)
(3) Bone Repair(3) Bone Repair
1- [Instantly] Hematoma Formation
2- [~2-3days] Fibrocartilaginous Callus Formation
3- [~7days] Bony Callus Formation
4- [~6-8weeks] Bone Remodeling
![Page 8: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/8.jpg)
(4) Hematoma Formation(4) Hematoma Formation
1. Bone breaks, blood vessels are torn and hemorrhage.
2. Mass of clotted blood forms at fracture site.
3. Bone cells are deprived of nutrition and die.
4. Tissue at fracture site becomes swollen, painful and inflamed.
![Page 9: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/9.jpg)
![Page 10: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/10.jpg)
(5) Fibrocartilaginous Callus (5) Fibrocartilaginous Callus FormationFormation
1. Capillaries from surrounding vessels grow into the hematoma.
2. Phagocytic cells (Macrophages + Osteoclasts) invade hematoma and clean up debris.
3. Osteoblasts + Osteocytes invade and begin to rebuild bone.
4. Collagen fibers are secreted to connect ends of bone.
![Page 11: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/11.jpg)
![Page 12: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/12.jpg)
(6) Bony Callus Formation(6) Bony Callus Formation
1. Fibrocartilaginous callus develops and hardens to form a bony callus of spongy bone.
2. Bone cells, collagen fibers and chondrocytes (cartilage cells) are continuously secreted to strengthen matrix.
![Page 13: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/13.jpg)
(7) Final Remodeling(7) Final Remodeling
1. Excess material on outside of diaphysis is removed.
2. Compact bone is laid down to reconstruct shaft walls.
![Page 14: “Notes: Bone Injury & Repair”. (1) Bone Injury Increased weight on bone/joint Irregular movement/manipulation –Twisting –Rotation –Bending.](https://reader036.fdocuments.us/reader036/viewer/2022062408/56649f1f5503460f94c377f0/html5/thumbnails/14.jpg)