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h Research
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RESEARCH
Main achievements of the project
1. Theme 1
1.1. Team 1 : Form and functionality of
movement
Navigated orthopaedic surgery
Activities concerned exploitation of methodology
developed in the “Minimally invasive surgery”
project, the creation of an innovative enterprise on
the theme of navigation in the tibial osteotomy
(OSTESYS) and the finalisation of the surgical
protocol of project "functional hip" [4] [16] with a
patent [23], which was carried out within the
framework of the thesis of Guillaume Dardenne
“Evaluation of pelvic dynamics by ultrasound
imaging. Application to total hip arthroplasty in
navigated surgery”. A collaboration with ENSIETA
produced an embedded system of ultrasound
analysis of the pelvic region. Further interns in
Masters and MD studies led to the validation of
detection algorithms for the knee region and
biomechanical analysis of the osteotomies.
Intelligent prostheses
This project advanced on two fronts: energy
production and analysis of pressure sensors.
Numerical simulations were made using ANSYS
software and more recently experimentation on a
knee simulator was advanced. The availability of
real digital models of knee prostheses by ‘Adler
Ortho’ should soon allow to produce interesting
results. Moreover in collaboration with the
Electronic dept of Telecom Bretagne / Lab-STICC
has been set up: a «Futur & Ruptures» financing
has been obtained for a joint thesis on “the
analysis and the conception of an interface for the
evaluation of the ligament balance in a knee
prosthesis” whose efforts will concentrate on the
transmission of embedded signals, and the
telemetry system involving from piezoelectric
components.
Inference Forms -> Movement
The main event of the past year was the
publication of an article [8] dealing with a robust
4D analysis approach to movement operating in a
median consensus. Likewise the essential new
efforts concerned the enlargement of this original
approach to generic biomedical problems, such
as the optimal design of cortical bone prostheses
or the definition of new protocols for measuring
human movement operating without cutaneous
markers.
Movement integrating imaging
The doctoral thesis of Cédric Schwartz brought a
“Contribution to the elaboration of a common
representative space for morpho-functional analysis
of the upper limb : applied to the glenohumeral
articulation”. In the Brahma project supported by
ANR, we tried to define the quantification of glide
necessary between orthosis and the upper limb
and optimum positioning of the upper limb and
the axes of the orthosis. Two Post-docs students
are working on this topic since April 2008.
Most striking events of 2008
- The maturation of the innovative enterprise
OSTESYS financed within the framework of the
Emergence-TEC 2008 programme, by funding
from Bretagne Valorisation, Integration in the
EMERGYS incubator, Integration in the Telecom
Bretagne incubator and registering our
candidature for the Ministry of Research -
OSEO-ANVAR prize .
- ANR TecSan HIPSURF project begins 1st Jan
2008 « Optimisation by finite elements of the
planification of hip resurfacing prostheses».
Creation of the firm SurgiQual Institute (SQI) in
which Telecom Bretagne and l’Institut Telecom
participate financially.
- HIPEOS project “3D functional imaging of the
hip: Professional tools for diagnosis, planning
and follow up” financed within the ANR TecSan
2008 programme.
1.2. Team 2 : Multi-modality quantitative
imaging for diagnosis and therapy
Physiological movement
We have already shown in recent work on the
correction of repiratory movement that qualitative
and quantitative precision in multi-modal
PET/scan imaging can be considerably improved.
Pursuing our activities in this field, we began to
deal with the following aspects: (i). "5D imaging"
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