Abstract.
A new set of pedicle screws, lamina and pedicle hooks, longitudinal rods and a titanium cable was developed to overcome the increasingly obvious hazards of overly rigid spinal instrumentation. Results of the first 12 consecutive scoliosis patients with this new system are reported, with an average follow-up time of 18 months. No major complications occurred. The average correction of the deformity was well within the range of more rigid systems. The new Dorsal Dynamic Spondylodesis (DDS) system proved to be easy to use, fast, powerful, safe, versatile, and biomechanically sound. Reduction of stress-shielding effects and protection of adjacent segments can be expected, and the system warrants future application in selected prospective cases with long-term follow-up.
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Pfeiffer, M., Deike, B., Clausen, J. et al. A new semirigid implant for instrumentation of scoliosis: preliminary report. Eur Spine J 10, 427–436 (2001). https://doi.org/10.1007/s005860000229
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DOI: https://doi.org/10.1007/s005860000229