Sentence examples for core screw from inspiring English sources

In this study, the bending strengths of seven types of commercial pedicle screws and a newly designed double dual core screw were evaluated by finite element analyses and biomechanical tests.

The results showed that only the conical screws with fixed outer diameter and the new double dual core screw could withstand 1,000,000 cycles of a 50 500 N cyclic load.

In the 2.4-/2.5-mm 2.4-/2.5-mm 2.4-/2.5-mme cannulated screw designs had a significantestsigher pullout strength when compared with the solid-core screw (P <.05).

Cannulated screws are inherently weaker than solid-core screws and thus subject to failure at lesser loads.

The results of this study suggest that small-diameter cannulated bone screws are similar in mechanical pullout strength to solid-core screws.

Cannulated screws from different manufacturers were compared against solid-core screws with 2.0-mm, 2.4-/2.5-mm, and 3.0-mm diameters.

In the testing of 3.0-mm screw test, 1 of the cannulated screw designs showed a significantly higher pullout strength than the other cannulated and solid-core screws that were tested (P <.05).

Owing to their non-planar cores, 1/2〈1 1 1〉 screw dislocations govern the plastic deformation of body-centered cubic (bcc) metals.

Moreover, using the constructed yield criteria within the Taylor homogenization procedure, we demonstrate that effects associated with non-planar cores of screw dislocations persist in random polycrystals.

We present a model for the origin of this behaviour that is based on the features of the cores of screw dislocations specific to this transition metal.

Lill et al. [ 33] examined the mechanical performance of cylindrical and dual-core pedicle screws that were fully inserted and then removed 4 mm from calf and human vertebrae.