Sentence examples for screw stresses from inspiring English sources

Compared with the TomoFix construct, the screw stresses of the T+I and π constructs respectively increased 13.5% and decreased 9.5%.

The models were subjected to axial loads and pure moments and evaluated by a hybrid method on range of motion (ROM s, disc stresses, pedicle screws stresses, and facet joint contact forces.

The screw stress was much higher without nail cortical contact than with contact and continued to increase as the nail was inserted further.

The maximum condylar stresses, screw stress and mandibular stress at the screw-bone interface were lower in the Melbourne prosthetic TMJ (259.6 MPa, 312.9 MPa and 198.4 MPa, respectively) than those in the Biomet Microfixation device (284.0 MPa, 416.0 MPa and 262.2 MPa, respectively) during the maximum-force bite, with similar trends also observed during the chewing bite.

With nail cortical contact, the screw stress decreased as the length of nail cortical contact and the distance between the distal locking screw and the fracture site increased, but this stress contrarily increased when the nail reached the femoral region at which the screw length increased.

Similar to the screw stress, the use of the I plate can decrease 56.6% of the plate stress.

For the T+I construct, the addition of the I plate can significantly decrease screw stress by 34.4%.

The screw stress of the T construct was the highest, followed by the T+I and TomoFix, and the π construct was the least stressed.

Different cage positioning altered screw stress; however, UPSF used in TLIF cage models increased screw-stress much more than BPSF, especially in extension (69 ~ 85% higher), right lateral bending (79 ~ 85% higher), and right axial rotation (54 ~ 77% higher), as compared with each TLIF model plus BPSF.

Chiang et al. used a 3-level FE model and found that a single oblique cage from the posterior approach (- like a TLIFo procedure) combined with BPSF gained approximate biomechanical behavior, but slightly greater subsidence and increased screw stress than the two parallel cages model [ 27].

Since the proximal portion of the locking plate was now more stable with all holes filled with screws, the stresses now concentrated at the four distal screws, causing them to break.