Screw direction
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The locking plate is a useful treatment for lateral clavicle fractures, however, there are limits to the fragment size that can be fixed. The current study aimed to measure the screw angles of three locking plates for lateral clavicle fractures.
7p vimackenziebezos 30-11-2021 5 1 Download
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We sought to evaluate the long-term outcomes of long-level instrumented posterolateral fusion (PLF) directly compared to those with short level instrumented PLF for degenerative spinal stenosis.
7p vioregon2711 22-02-2021 10 1 Download
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Direct screw placement for quadrilateral plate fractures in the danger zone of the acetabulum is very difficult. This study was performed to simulate the surgical procedure and try to obtain effective and safe screw angles through the middle window of the ilioinguinal approach in Chinese patients.
8p vimariana2711 22-12-2020 13 2 Download
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The treatment of Hoffa fractures is challenging, for which the ideal fixation and approach are still controversial. Osteosynthesis with plate or screws fixation in different trajectories have been described in previous literature.
6p vimariana2711 22-12-2020 8 0 Download
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The technique of posterior pedicle screw fixation has already been widely applied in the treatment of upper thoracic spinal tuberculosis. However, lesions of tuberculosis directly invade the vertebrae and surrounding soft tissues, which increases the risk of esophageal perforation induced by the posterior pedicle screw placement.
6p vimariana2711 22-12-2020 13 1 Download
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Timber is highly anisotropic. It behaves differently in diverse directions. Tension and compression perpendicular to the grain present a low strength with respect to the ones parallel to the grain. To compensate for the lack, the self-tapping screw is an excellent choice for reinforcing the timber. This paper focuses on the notched timber beam with the experimental and numerical results. In the first part, the experimental results of the unreinforced notched beams and the screw reinforced notched beams under bending load will be presented.
7p caygaocaolon1 13-11-2019 7 0 Download
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(bq) part 2 book "mechanisms and mechanical devices" has contents: latching, fastening, and clamping devices and mechanisms; spring and screw devices and mechanisms; chain and belt devices and mechanisms; computer aided design concepts; rapid prototyping; new directions in mechanical engineering,... and other contents.
315p bautroibinhyen19 02-03-2017 88 9 Download
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This book pilots the reader into the future. The first three chapters introduce new materials and material processing methods. Then five chapters present innovative new design directions and solutions. The main section of the book contains ten chapters organized around problems and methods of manufacturing and technology, from cutting process optimisation through maintenance and control to the Digital Factory. The last two chapters deal with information and energy, as the foundations of a prospering economy....
424p cucdai_1 22-10-2012 92 20 Download