Arne Christian Vogel

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The nucleus pulposus of the intervertebral disc is a gelatinous viscous hydrogel that has an essential role in the mechanics of the intervertebral disc joint. The viscoelastic properties of the nucleus pulposus significantly change in the course of time an ...

Intervertebral disc (IVD) degeneration is one of the prevailing medical concern and actual health cost. Industries and academic institutions research for therapeutic solutions going from drugs to complete and partial arthroplasty devices as well as engineered tissues. Most research focus on the nucleus pulposus (NP) of the IVD because it is believed that, in the degeneration process, the NP is the scene of the first (irreversible) biochemical and mechanical changes. Mechanical, biochemical, nutritional and

Physiological loading result to finite and finite rate of deformations of soft tissues such as ligament, tendons, and the annulus fibrosus of the intervertebral disc. Under these conditions, these soft tissues exhibit viscoelastic effects such as strain-stiffening, creep and relaxation that have important implications in the stability of joints. Although the effects are significant, viscoelasticity has, however, only recently been taken into account in biomechanical studies. We have developed a versatile vi

Developing a successful bone tissue engineering strategy entails translation of experimental findings to clinical needs. A major leap forward towards this goal is developing a quantitative tool to predict spatial and temporal bone formation in scaffold. We ...

In the framework of spine traumatology, burst fractures are severe and are often caused by car accidents or by falls. The vertebra breaks under the traumatic compression and pieces of it are shattered in all directions. This type of fracture is often treated by spinal fusion using a posterior sytem with rods and pedicular screws. By decompressing the traumatic region, the fracture is allowed to heal and to restore to a physiological geometry. However, a progressive kyphosis (flexion of the spine) is clinica

Articular cartilage is a soft tissue showing inelastic properties. Under cyclic loading, inelastic materials may dissipate mechanical energy into heat. In knee cartilage, due to an intrinsic reduced heat convection related to its avascularity, a local temp ...

Background: The nucleus pulposus is extremely deformable and it is not uncommon to observe strain amplitudes as large as 12.5% in physiological loading conditions. It has been shown that the nucleus pulposus contributes to the damping properties of the int ...

Intervertebral disc (IVD) degeneration is one of the prevailing medical concern and actual health cost. Industries and academic institutions research for therapeutic solutions going from drugs to complete and partial arthroplasty devices as well as engineered tissues. Nucleus pulposus replacement devices (NPRD), and particularly promising hydrogels, are being developed to restore the ``physiological'' state of the intervertebral disc. This project consists in investigating viscoelastic properties of hydroge

BACKGROUND: Supraspinatus deficiency is the most frequent and important problem associated to rotator cuff pathologies. It reduces shoulder stability and can lead to osteoarthritis. The goal of this study was to develop a numerical model of the shoulder to ...

The project consists of: - mechanical tests of the prototype of the new implant and comparison to existing anterior fixation systems in a bone model material; - a literature review in order to classify the test results; - the development of a finite element model for the tension case, which will be validated by the mechanical tests.

The shoulder is one of the most complex joints of the human body, mainly because of its large range of motion, but also because of its active muscular stabilisation. Actually, the numerous stabilizing muscles and degrees of freedom yield indeterminate biom ...

Arne Christian Vogel

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Thermomechanical Hysteresis of Biological and Synthetic Hydrogels : Theory, Characterisation, and Development of a Novel Deformation Calorimeter

Does viscoelasticity of a Hydrogel-cell construct affect ECM production?

Soft-tissue viscoelasticity: extension to anisotropy and finite element implementation

Prediction of spatio-temporal bone formation in scaffold by diffusion equation

Analysis of the stability of a posterior fusion system for the treatment of burst fractures

Cartilage self-heating contributes to chondrogenic expression

Damping properties of the nucleus pulposus

Hydrogel viscoelasticity: identification of dissipation sources

Effect of supraspinatus deficiency on humerus translation and glenohumeral contact force during abduction

Biomechanical investigation of a new implant for cervical spine fusion

Hydrogel Injection for a Rapid Local Bone Density Increase

An algorithm to allow humerus translation in the indeterminate problem of shoulder abduction

Diffusion equation describes the spatial and temporal course of in vivo osteogenesis in scaffold: an experimental-theoretical study.

Analysis of stability in burst fractures with posteriro instrumentation system

Multi-modeling Dissipation Potential for Non-linear Viscoelasticity:Annulus Fibrosus Application

Pedicular screw optimization to reduce postoperative instability of burst fractures

Damping properties of the nucleus pulposus

Novel hydrogel for the replacement of the nucleus pulposus

Osteogenesis in tissue engineering scaffolds can be described by diffusion equation

A Polyvalent Dissipation Potential with Interpretable Viscous Material Parameters