Bone Growth and Fracture Healing Flashcards
what is the diaphysis
the central part of the long bone
what is metaphysis
flared end of the shaft
what is the epiphysis
on the joint side of the physis
what is cortical bone(compact bone)
outer layer of bone, dense
what is cancellous bone|(spongey bone)
absorbs
sight of longitudinal growht
what are the 4 stages of repair
inflammation
soft callus
hard callus
bone remodelling
explain inflammation
begins immediately after fracture
angiogenesis, macrophages
explain soft callus
begins when pain and swelling subside
lasts until bony fragments are united by cartilage or fibrous bone
explain hard callus
conversion of cartilage to woven bone
endochondral and membranous bone formation
explain bone remodeeling
conversion of woven bone to lamellar bone
medially canal is reconstituted
what Is strain
degree of instability-if its high then healing process does not progress to bone formation
what things make bone healing longer
smoking
ciproflxiacin
warfarin
