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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Bending stiffness of odontoid fracture fixation with one cortical screw - numerical approach
Original language description
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.
Czech name
Ohybová tuhost fraktury dens axis stabilisovaná jedním kortikálním šroubem - numerický přístup
Czech description
Cíle práce jsou kladeny na numerickou analýzu stability fraktury druhého krčního obratle typu dens axis.

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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