• Matteo Formica, Luca Cavagnaro, Marco Basso, Andrea Zanirato, Lamberto Felli, and Carlo Formica.
• Clinica Ortopedica - IRCCS Azienda Ospedaliera Universitaria San Martino - IST, Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi, 10, 16132, Genoa, GE, Italy. dott.formica@gmail.com.
• Eur Spine J. 2015 Nov 1; 24 Suppl 7: 849-54.

Purpose Of The StudyTo evaluate the results of a novel rigid-dynamic stabilization technique in lumbar degenerative segment diseases (DSD), expressly pointing out the preservation of postoperative lumbar lordosis (LL).Materials And MethodsForty-one patients with one level lumbar DSD and initial disc degeneration at the adjacent level were treated. Circumferential lumbar arthrodesis and posterior hybrid instrumentation were performed to preserve an initial disc degeneration above the segment that has to be fused. Clinical and spino-pelvic parameters were evaluated pre- and postoperatively.ResultsAt 2-year follow-up, a significant improvement of clinical outcomes was reported. No statistically significant difference was noted between postoperative and 2-year follow-up in LL and in disc/vertebral body height ratio at the upper adjacent fusion level.ConclusionsWhen properly selected, this technique leads to good results. A proper LL should be achieved after any hybrid stabilization to preserve the segment above the fusion.

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