Pedicle screw construct have become one of the most practiced procedure in spinal surgery.
Despite commonly used, questions remain about their safety especially for the thoracic …

Objective: To determine the variation in the insertion torque of orthodontic miniscrews
according to the screw length, diameter, and shape. Materials and Methods: The maximum …

BACKGROUND: Pedicle screw fixation in a severely osteoporotic spine remains a challenge
for orthopedic surgeons. The previous literature does not adequately address the effects of …

Study Design: A biomechanical ex vivo study of the human lumbar spine. Objective: To
evaluate the effects of transpedicular screw insertion depth on overall screw stability and …

Study Design: Comparative biomechanical study by finite element (FE) method. Objective:
To investigate the pullout strength of pedicle screws using different insertional trajectories …

Study Design. Pedicle screw strength or load to failure was biomechanically evaluated, and
the geometric characteristics of pedicle screw instrumentation systems were compared …

Purpose: To quantify in vivo changes in miniscrew implant (MSI) stability over time using
resonance frequency analysis, and to determine if pilot holes and placement sites affect …

Study Design. The pullout strength of a typical pedicle screw was evaluated experimentally
for different screw insertion techniques. Objective. To conclude whether the self-tapping …

Pedicle bone screws are one of the most critical materials used in spinal orthopaedic
operations. Screw loosening and pull-out (PO) are basic complications encountered during …

In recent times, the roofing systems made of thin and high strength steel roof sheeting and
battens or purlins are predominantly used in the construction of low-rise buildings. However …