Augmentation of pedicle screw fixation strength using an injectable calcium phosphate cement as a function of injection timing and method.

@article{Renner2004AugmentationOP,
  title={Augmentation of pedicle screw fixation strength using an injectable calcium phosphate cement as a function of injection timing and method.},
  author={Susan M. Renner and Tae-kyun Lim and Whoan Jeang Kim and Leonid I. Katolik and Howard S. An and Gunnar B. J. Andersson},
  journal={Spine},
  year={2004},
  volume={29 11},
  pages={
          E212-6
        }
}
STUDY DESIGN Axial pullout tests using fresh cadaveric thoracolumbar vertebral bodies. OBJECTIVES To evaluate the effect of a new injectable calcium phosphate cement on the axial pullout strength of both revised and augmented pedicle screws in comparison with polymethyl methacrylate and in terms of injection method. SUMMARY OF BACKGROUND DATA Failure of pedicle screws by loosening and back out remains a significant clinical problem and is of particular concern for patients with low bone… CONTINUE READING

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Effect of Screw Diameter , Insertional Torque , and Bone Cement Augmentation on Pedicular Screw Fixation Strength

  • R. H. Wittenberg, K. Lee, M. Shea
  • Clinical Orthopedics

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