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TitleA novel methodology to assess the relaxation rate of the intervertebral disc by increments on intradiscal pressure
Author(s)Araújo, Ângelo Rafael Gomes
Peixinho, Nuno
Pinho, A. C. Marques de
Claro, José Carlos Pimenta
KeywordsIntervertebral disc
Intradiscal pressure
Issue date2014
PublisherTrans Tech Publications
JournalApplied Mechanics and Materials
Abstract(s)The Intervertebral Disc (IVD) is subjected to several types of loading during daily routine events. However, the overloading on this structure induces higher Intradiscal Pressure (IDP), which could cause severe damage on its structure. This study describes a new approach to that allows monitorize and pressurize nuclear region of the IVD, with a cartilaginous endplate access, by the insertion of an external fluid, while a Motion Segment (MS-assembly composed by vertebra-disc-vertebra) is compressed at a physiological load. This methodology includes the use of a pneumatic structure that applies a certain pressure on the hydrostatic system, forcing a fluid to enter into the MS through a screw, with a drilled hollow along its entire length. Preliminary results indicated that this methodology presents high potential to efficiently pressurize the IVD, providing a useful tool to better understand the response of this structure under pressure.
DescriptionPublicado em "Applied mechanics and materials, vol. 664 (2014) pp 379-383"
Appears in Collections:CT2M - Publicações em atas de encontros científicos / Papers in conference proceedings

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