About: Hip Replacements with the Gradient of Elastic Properties - How to Eliminate a Shield Effect of Rigid Replacements

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Dosud používané rigidní dříky kyčelních implantátů jsou charakteristické velkou ohybovou tuhostí, která se projevuje velmi výrazným snížením napětí (a deformaci) v kortikalis u jejího rozhraní se dříkem. Kortikalis femuru se v této oblasti přetváří v podstatně jiných deformačních režimech, než se deformuje za normální situace, tj. při absenci umělé náhrady. Negativní vliv %22štítového efektu%22 lze velmi účinně eliminovat aplikací kompozitního dříku s gradientem elastických vlastností. (cs) A human femur is loaded by a wide range of dynamic effects which are transferred by the walls of a cortical bone and has substantial influence on the natural functioning of bone tissue. By the application of rigid or quasi-elastic stems of implants in a femur cavity, the physiological distribution of forces in the wall of the femur diaphysis is impaired, and its flexural rigidity is increased. The increase in flexural rigidity of a cortical bone after the implantation of a rigid replacement leads to the reduction of load in a cortical bone, namely in its proximal part. Our effort is aimed at minimizing a %22shield effect%22 that arises in this way, and at the maximum possible approximation to the natural transition of the stress that is typical of a sound bone. A human femur is loaded by a wide range of dynamic effects which are transferred by the walls of a cortical bone and has substantial influence on the natural functioning of bone tissue. By the application of rigid or quasi-elastic stems of implants in a femur cavity, the physiological distribution of forces in the wall of the femur diaphysis is impaired, and its flexural rigidity is increased. The increase in flexural rigidity of a cortical bone after the implantation of a rigid replacement leads to the reduction of load in a cortical bone, namely in its proximal part. Our effort is aimed at minimizing a %22shield effect%22 that arises in this way, and at the maximum possible approximation to the natural transition of the stress that is typical of a sound bone. (en)
Title	Hip Replacements with the Gradient of Elastic Properties - How to Eliminate a Shield Effect of Rigid Replacements Hip Replacements with the Gradient of Elastic Properties - How to Eliminate a Shield Effect of Rigid Replacements (en) Dřík kyčelního implantátu s gradientem elastických vlastností - jak eliminovat %22štítový efekt%22u rigidních implantátů? (cs)
skos:prefLabel	Hip Replacements with the Gradient of Elastic Properties - How to Eliminate a Shield Effect of Rigid Replacements Hip Replacements with the Gradient of Elastic Properties - How to Eliminate a Shield Effect of Rigid Replacements (en) Dřík kyčelního implantátu s gradientem elastických vlastností - jak eliminovat %22štítový efekt%22u rigidních implantátů? (cs)
skos:notation	RIV/68407700:21110/04:01105432!RIV/2005/GA0/211105/N
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA106/03/0255)
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Petrtýl, Miroslav Jíra, Aleš
http://linked.open.../riv/druhVysledku	A(V) - Audiovizuální tvorba se vzdáleným přístupem
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	566198
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/04:01105432
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hip replacement; modul of elasticity; stem with gradient of elastic properties; strains; stresses (en)
http://linked.open.../riv/klicoveSlovo	stem with gradient of elastic properties stresses hip replacement modul of elasticity strains
http://linked.open...i/riv/kodPristupu	L
http://linked.open...ontrolniKodProRIV	[D42552FB0C0D]
http://linked.open...i/riv/mistoVydani	Plzeň
http://linked.open...n/vavai/riv/nosic	neuvedeno
http://linked.open...in/vavai/riv/obor	FP
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Control of bioadhesion of connective tissue to the polymer composites
http://linked.open...UplatneniVysledku	2004
http://linked.open...iv/tvurceVysledku	Jíra, Aleš Petrtýl, Miroslav
https://schema.org/isbn	80-7043-315-9
http://localhost/t...ganizacniJednotka	21110

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