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Published byRalph Moore Modified over 9 years ago
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1 10 - examples 10 - examples - density growth
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2 example - adaptation in bone different load cases Carter & Beaupré [2001] [1] [2] [3] midstance phase of gait extreme range of abduction extreme range of adduction 2317 N 1158 N 1548 N 24˚ -15˚ 56˚ 703 N 351 N 468 N 28˚ -8 ˚ 35˚
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3 example - adaptation in bone different load cases Carter & Beaupré [2001] combination of all load cases necessary
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4 example - adaptation in bone experiment vs simulation dense system of compressive trabaculae carrying stress into calcar region secondary arcuate system, medial joint surface to lateral metaphyseal region ward‘s triangle, low density region contrasting dense cortical shaft Carter & Beaupré [2001]
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5 example - adaptation in bone node point based - h-refinement
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6 example - adaptation in bone node point based - p-refinement
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7 example - adaptation in bone integration point based - p-refinement
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8 example - adaptation in bone parameter sensitivity - instabilities certain parameters induce checkerboard modes Harrigon & Hamilton [1992],[1994]
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9 example - adaptation in bone comparison with x-rays excellent agreement of simulation and x- ray pattern Pauwels [1973] coxa norma coxa valga coxa vara
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10 example - hip replacement total hip replacement vs hip resurfacing about 120,000 artificial hip replacements in us per year aseptic loosening caused by adaptive bone remodeling goal prediction of dredisctribution of bone density
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11 example - hip replacement convential total hip replacement ward‘s triangle trabeculae dense cortical shaft
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12 example - hip replacement convential total hip replacement stress shielding bone resorption implang loosening
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13 example - hip replacement new birmingham hip resurfacing ward‘s triangle trabeculae dense cortical shaft
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14 example - hip replacement new birmingham hip resurfacing improved ingrowth anatomic situation less resorption
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15 example - hip replacement computer tomography of human femur patient specific medical treatment
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16 example - wound healing wound healing epidermal migration / spreading of existing cells increase of mitotic activity of about15 times in 1mm wide zone @wound edge Murray [2003]
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17 example - wound healing wound healing „…thou shouldst bind it with fresh meet the first day, and thou shouldst treat afterword with grease and honey every day until he recovers…“ Breadsted [1930] Edwin Smith Surgical Papyrus [13th Dynasty]
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18 example - wound healing tension - single edge notched specimen
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19 example - wound healing tension - single edge notched specimen increased cell activity @wound edge
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20 example - wound healing tension - surface cut specimen increased cell activity @wound edge
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21 example - wound healing tension - crack mouth opening displacement increased cell activity - wound healing & closure
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22 example - wound healing bending - single edge notched specimen increased cell activity @wound edge
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23 example - wound healing bending - surface cut specimen increased cell activity @wound edge
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24 example - wound healing bending - crack mouth opening displacement increased cell activity - wound healing & closure
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25 example - topology optimization form follows function structural design load case Iload case II optimal material distribution I
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26 example - topology optimization form follows function bicycle frames 1817-2005
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27 example - topology optimization form follows function design of bicycle frame Armstrong [2005]Kuhl [2005]
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