Each specimen was instrumented (L1-4) and tested with both standard and cortical trajectory pedicle screws. Each specimen was instrumented (L1-4) and tested.

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Each specimen was instrumented (L1-4) and tested with both standard and cortical trajectory pedicle screws. Each specimen was instrumented (L1-4) and tested with both standard and cortical trajectory pedicle screws. Due to the difference in screw start points and insertion trajectories, there was minimal interaction between the constructs. Wayne K. Cheng, and Serkan İnceoğlu Int J Spine Surg 2015;9:46 Copyright © 2015 ISASS - This manuscript is generously published free of charge by ISASS, the International Society for the Advancement of Spine Surgery

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