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12 year old boy has a bone fracture injury (Anatomy of a long bone…
12 year old boy has a bone fracture injury
Anatomy of a long bone
Cells in bone
osteoblast
creation and mineralisation
osteoclast
reabsortion of bone tissue
osteocyte
cell is formed when osteoclast is embedded
Diaphysis
The central shaft
epiphysis
end part of long bone
medullary cavity
endosteum
connective tissue
periosteum
connective tissue
epiphyseal plate
Hyaline cartilage, growth occurs
classification of bone fractures
Transverse
Break is straight across bone
Spiral
break spirals around bone
Oblique
Diagonal break across bone
Compression
Bone is crushed
Comminuted
Bone is broken, three or more pieces
Segmental
Bone is fractured into two places
Greenstick
stages of bone healing
repairing phase
2-3 weeks
develops cartlage,and tissue
bone remodeling
solid bone replaces spongy bone
Inflammatory phase
fracture hematoma formation
lasts one week