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Helical Flange technology and a very low profile give the Preference 2 Spine System the edge when it comes to posterior internal fixation. The Closure Top interlocks with the Pedicle Screw to eliminate the possibility of head-splay during final tightening. And the Helical Flange is resistant to the typical cross-threading that can occur with conventional set screws. A 6.0mm diameter rod provides a nice balance between size and strength, and our implants are available in a comprehensive array of diameters, with options for Reduction Screws, Lateral Offset Connectors, and Hooks, making the Prefe
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