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The model of the instrumented lumbar spine was developed between 2002 and 2004
within the European project called DEVASPIM, supported by the 5th Framework
Programme under IST.
RTD Work
DEVASPIM was a research and development project with the goal of developing
a virtual assistant to help orthopaedic surgeons and implant manufacturers to
minimize failure cases due to inappropriate implants or implant configurations
in the lumbar spine. For that, a new instrumented finite element model was developed,
based on previous biomechanical experience of the RTD partners.
The two RTD partners were:
- Laboratoire de Biomecanique of the ENSAM at Paris (France)
- Instituto de Biomecánica de Valencia (Spain).
Both centres are reference institutions in biomechanics and orthopaedic-related research in their respective countries.
Finite Element Models (FEM) of the spine implant, which incorporate fixation
systems to perform analysis of the spine-implant construct, were modelled considering
their mechanical features (+ click here to learn
more about FE models).
For this reason, it was necessary to set up the testing procedures to know the biomechanical behaviour (stiffness) of the different spine implant configurations. The data obtained were used for FEM configuration validation. The products of spine implants of the manufacturers participating in the research project were used to adapt the validation methodology and to generate a database.
Afterwards the parameterisation of the instrumented spine FE model was carried out. This required to define a model of the spine based on a previous intact joint model which permitted a rapid modelling of the injuries and spine implant configurations selected in the input configuration.
+ Download brochure of Devaspim results
