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Custom-made trabecular titanium implants for the treatment of lumbar degenerative discopathy via ALIF/XLIF techniques: rationale for use and preliminary results

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Abstract

Purpose

Related to the development and diffusion of ALIF and XLIF, it is possible to correct sagittal malalignment in selected cases of lumbar degenerative discopathy with a relatively low invasiveness. Still, the malposition or the inappropriate size of the implanted cages may lead to the subsidence of the vertebral endplates with loss of correction as well as a decrease in the potential to restore spinal biomechanics in the long run. The aim of this study is to evaluate safety, feasibility, and preliminary clinical and radiological results when using custom-made, trabecular titanium cages in ALIF and XLIF procedures.

Methods

We prospectively evaluated 18 consecutive patients who underwent either an ALIF or an XLIF procedure with the implant of a custom-made, trabecular titanium cage for lumbar degenerative disease with sagittal imbalance, with a minimum of 1-year clinical and radiological follow-up.

Results

After a mean follow-up of 14 months, the Oswestry score dropped to a mean of 13 from a preoperative value of 48 (p < 0.0001). Lumbar lordosis was significantly improved, especially in the lower lumbar segment L4-S1 (+ 11 ± 7°; p < 0.0001). No cases of subsidence were noted.

Conclusions

Custom-made, trabecular titanium cages allowed a segmental, steady, durable sagittal correction via ALIF and XLIF approaches. The absence of cage subsidence at 1 year encourages further studies on a larger cohort with longer follow-up.

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Authors and Affiliations

  1. Department of Special Surgeries, Unit of Neurosurgery, University Hospital of Parma, Parma, Italy

    Fulvio Tartara, Giulia Pilloni, Elena Virginia Colombo & Ermanno Giombelli

  2. Neurosurgery Unit, ASST Fatebenefratelli Sacco, Milan, Italy

    Daniele Bongetta

Authors
  1. Fulvio Tartara
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  2. Daniele Bongetta
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  3. Giulia Pilloni
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  4. Elena Virginia Colombo
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  5. Ermanno Giombelli
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Correspondence to Daniele Bongetta.

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Tartara, F., Bongetta, D., Pilloni, G. et al. Custom-made trabecular titanium implants for the treatment of lumbar degenerative discopathy via ALIF/XLIF techniques: rationale for use and preliminary results. Eur Spine J 29, 314–320 (2020). https://doi.org/10.1007/s00586-019-06191-y

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  • DOI: https://doi.org/10.1007/s00586-019-06191-y

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