https://www.selleckchem.com/products/pfi-2.html
We hypothesized that an entire pedicle screw tract cement augmentation has greater strength than traditional techniques. Twenty-four fresh frozen calf lumbar spines were randomized into three study groups, each having eight vertebrae (1) screw cemented after vertebroplasty; (2) fenestrated cemented screw; and (3) cementation of the entire pedicle screw tract. For the right side screws, two pedicle screws were inserted in each vertebra with the standard position in the sagittal plane, whereas the left side screws were placed at a 30° angle
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