Übersetzung für "Stress shielding" in Deutsch

The freedom from slipping makes it possible to achieve an exact guidance of and low stress on the shielding element.

It is to eliminate “stress shielding” so that the fusion can take place.

The above and other objects are accomplished according to the invention by utilizing the realization that all known endoprostheses, with the exception of isoelastic prostheses, have a much greater bending and longitudinal rigidity than the cortical bone tube and that this leads to an unstressing of the corticalis (called stress-shielding).

Stress on the shielding element can be kept small if the drive is embodied such that it keeps the shielding element free of tension during the movement thereof.

For example, certain plate regions can have an elastic property and thereby adjust themselves to the endplate contour, and/or thereby counteract stress shielding.

For example, endplate compression fractures can occur due to the localized stress application or the small placement area of the implant, the desired bony fusion can be unsuccessful due to stress shielding, the implants can slip out of place, or the position of the vertebral bodies relative to each other cannot be sufficiently corrected.

If the first outer region is too solid, the already described effect of “stress shielding” results due to the high rigidity of the monolithic ceramic material.

If one minimizes the structural rigidity in order to avoid “stress shielding” through reduction of the first outer region relative to the second inner region, and if this is then realized too weakly, for instance through a too thin wall thickness, the component can thus sink uncontrolled into the adjacent vertebral body.

The dangers of “stress shielding” and uncontrolled sinking into adjacent vertebral bones are thereby effectively minimized.

The problem of the screws becoming loose is often described, which is a consequence of the so called “stress shielding”.

If, now, the forces caused by biomechanical stresses on the component are transmitted through the area with high rigidity, the mechanical stimulus in the central region of the component—that is, where the fusion is to take place—is absent, as the stress is shielded (“stress shielding”).

Accordingly, the object of the invention is to provide an endoprosthetic component which is particularly suitable for the fusion of vertebral bodies and eliminates or at least reduces the effect of “stress shielding.”

This increases the primary stability, but this arrangement is subject in the same way to the stress shielding described in the introduction.

The effect of the stress shielding is attributed to the biological-biomechanical principles of the mechanical stimulation of bone growth (Ignatius, 2005;

Although the stress shielding is largely thereby avoided, nevertheless it is doubtful whether such a screw has the necessary durability for stabilising bones.

Thus, for example, different elimination elements could be mounted, in order on the one hand to attenuate mechanical vibrations which stress the shielding plate intensively, whilst other elements are used purely for acoustic damping and could be matched to resonances in the acoustic frequency range.

In terms of stress shielding, the occurrence of cortical hypertrophy and the results evaluated with the HHS, there were no differences between the groups.

Using an acetabular cup made entirely from plastic, he hoped to not only reduce production costs, but also to resolve the problem of bone loss caused by the phenomenon known as stress shielding.

My aim was primarily to preserve bone in the proximal femur, reduce stress shielding and avoid damaging the muscles around the greater trochanter during the implantation procedure.

The closer match of Ti-42Nb in tensile elasticity to that of cortical bone means that the stress shielding between bone and implant and associated inflammation or implant loosening, due to mechanical mismatches, is reduced.

In this case, the cooling elements may be given a finger-like shape so that no conductive loops exist through which electromagnetic forces are generated which would excessively mechanically stress the heat shield.

As well as thermal and mechanical stresses the heat shield elements are also exposed to heavily corrosive stresses as a result of the flow of hot gas.