Ohybová tuhost fraktury dens axis stabilisovaná jedním kortikálním šroubem - numerický přístup

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F07%3A%40KMP0063" target="_blank" >RIV/46747885:24210/07:@KMP0063 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Bending stiffness of odontoid fracture fixation with one cortical screw - numerical approach

Popis výsledku v původním jazyce

The anterior screw fixation of odontoid fractures is nowadays standard clinical operation. There are less biomechanical studies dealing with the problem whether on or two screws should be used for this type of stabilisation. This study used in vitro experiment and finite element simulation to investigate the bending stiffness in the midsagital plane of stabilised odontoid fracture type II of the second cervical vertebra. The comparative study of one cortical screw and the cannulated one was performed. The results indicated that there are no significant differences between them. In addition from the bending stiffness point of view, tightening the screw to higher levels is quite useless, because the stiffness is not higher, but with higher stresses we can reached diminishing of the bone?s strength and stiffness, according to Wolff?s law of functional adaptation. Thus the most reasonable might be to tighten the screws to certain moment, as in the dental surgery is performed.

Název v anglickém jazyce

Bending stiffness of odontoid fracture fixation with one cortical screw - numerical approach

Popis výsledku anglicky

The anterior screw fixation of odontoid fractures is nowadays standard clinical operation. There are less biomechanical studies dealing with the problem whether on or two screws should be used for this type of stabilisation. This study used in vitro experiment and finite element simulation to investigate the bending stiffness in the midsagital plane of stabilised odontoid fracture type II of the second cervical vertebra. The comparative study of one cortical screw and the cannulated one was performed. The results indicated that there are no significant differences between them. In addition from the bending stiffness point of view, tightening the screw to higher levels is quite useless, because the stiffness is not higher, but with higher stresses we can reached diminishing of the bone?s strength and stiffness, according to Wolff?s law of functional adaptation. Thus the most reasonable might be to tighten the screws to certain moment, as in the dental surgery is performed.

Druh

C - Kapitola v odborné knize

CEP obor

BO - Biofyzika

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

IFMBE Proceedings

ISBN

978-3-540-73043-9

Počet stran výsledku

3

Strana od-do

270-273

Počet stran knihy

—

Název nakladatele

Springer Berlin Heidelberg

Místo vydání

Berlin Heidelberg

Kód UT WoS kapitoly

—