“The study showed that using the STALIF™ with 3 or 4 screws significantly reduces all ranges of motion to the same levels as
performing a 360˚ fusion.”
Flexion-extension highlighted the most significant biomechanical findings in the current study. The STALIF™ groups with three and four screws, as well as the LT CAGE®and pedicle screw group, indicated significantly less segmental motion than the LT CAGE® and PYRAMID® Plate group (p<0.05). The intact spine and LT CAGE® alone group produced significantly more motion at the operative L4-L5 level compared to all other treatments (p<0.05).
Click on image to enlarge
Extension Load to failure tests demonstrated the effectiveness of the STALIF™ group compared to the other groups tested. Using STALIF™ negates the necessity of performing a 360 circumferential fusion or using a profiled anterior plate in the vicinity of the major vessels, thus avoiding the disadvantages and risks associated with both of these techniques.
Click on image to enlarge