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− | <big><center>[[Bones|'''BACK TO BONES''']]</center></big>
| + | ==Changes to normal structure== |
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| + | ===Damage to Periosteum=== |
| + | *Invokes a hyperplastic reaction of the inner layer |
| + | *Is painful |
| + | *Exostoses can remodel or remain |
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| + | Lifting of periosteum causes new bone formation below |
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− | | + | Circumferential incision (e.g. during [[Bones Fractures - Pathology|fracture]]) |
− | ===Normal structure===
| + | *Longitudinal bone growth results |
− | | + | *May be only on one side where periosteum is damaged |
− | **Damage to periosteum:
| + | **Used by surgeons to treat [[Angular Limb Deformity|angular limb deformities]] |
− | ***Invokes a hyperplastic reaction of the inner layer
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− | ***Is painful
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− | ***Exostoses can remodel or remain
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− | **Lifting of periosteum causes new bone formation below
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− | **Circumferential incision (e.g. during [[Bones - fractures|fracture]])
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− | ***Longitudinal bone growth results
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− | ***May be only on one side where periosteum is damaged
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− | ****Used by surgeons to treat [[Bones - developmental#Angular limb deformity|angular limb deformities]]
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| ===Physis (Growth plate)=== | | ===Physis (Growth plate)=== |
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| **Regulated by androgens | | **Regulated by androgens |
| *If growth teporarily stops -> layer of bone seals the growth plate -> moves into metaphysis when growth resumes -> forms '''Harris lines''' | | *If growth teporarily stops -> layer of bone seals the growth plate -> moves into metaphysis when growth resumes -> forms '''Harris lines''' |
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| + | ==Test yourself with the Bone and Cartilage Pathology Flashcards== |
| + | |
| + | [[Bones_and_Cartilage_Flashcards_-_Pathology|Bones and Cartilage Flashcards]] |
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| + | [[Category:Bones - Pathology|A]] |