Difference between revisions of "Bone Response to Damage"

Latest revision as of 12:39, 3 March 2011

Lifting of periosteum causes new bone formation below

Circumferential incision (e.g. during fracture)

Longitudinal bone growth results
May be only on one side where periosteum is damaged
- Used by surgeons to treat angular limb deformities

Site of many congenital or nutritional bone diseases in the growing animal
Open in neonates and growing animals
- Chondrocyte proliferation balances cell maturation and death
Closes and ossifies at maturity
- Regulated by androgens
If growth teporarily stops -> layer of bone seals the growth plate -> moves into metaphysis when growth resumes -> forms Harris lines

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+==Changes to normal structure==
-[[Category:Delete]]
+===Damage to Periosteum===
+*Invokes a hyperplastic reaction of the inner layer
+*Is painful
+*Exostoses can remodel or remain
+Lifting of periosteum causes new bone formation below
+Circumferential incision (e.g. during [[Bones Fractures - Pathology|fracture]])
+*Longitudinal bone growth results
+*May be only on one side where periosteum is damaged
+**Used by surgeons to treat [[Angular Limb Deformity|angular limb deformities]]
+===Physis (Growth plate)===
+*Site of many '''congenital''' or '''nutritional''' bone diseases in the growing animal
+*'''Open''' in neonates and growing animals
+**Chondrocyte proliferation balances cell maturation and death
+*'''Closes and ossifies''' at maturity
+**Regulated by androgens
+*If growth teporarily stops -> layer of bone seals the growth plate -> moves into metaphysis when growth resumes -> forms '''Harris lines'''
+==Test yourself with the Bone and Cartilage Pathology Flashcards==
+[[Bones_and_Cartilage_Flashcards_-_Pathology|Bones and Cartilage Flashcards]]
+[[Category:Bones - Pathology|A]]