Abstract
Purpose
Extraforaminal lumbar interbody fusion as with other methods that involve the mechanism of indirect decompression, the discussion not only focuses on the benefit of minimizing the risk of thecal sac injury and postoperative scarring, but also on the risk of insufficient decompression in the affected neural structures during the reduction of the affected segment.
Methods
Eighty-two patients presenting with degenerative lumbar disease with segmental instability underwent ELIF combined with transpedicular fixation and circumferential fusion. Clinical and radiographic evaluations were performed.
Results
The mean ODI significantly improved from 63.4 preoperatively to 32.3 1 year postoperatively. The mean VAS back pain significantly improved from 5.95 to 2.63 postoperatively and VAS (leg pain) improved from 6.04 to 2.44. The mean CSA increased from 103 mm2 preoperatively to 169 mm2 postoperatively. The median extension ratio of CSA was 33%. Disc height, segmental disc angle, and lumbar lordosis also improved significantly. Only three (3.7%) patients were revised using direct central decompression due to neurologic deterioration.
Conclusion
Spinal stenosis was resolved successfully by indirect decompression through extraforaminal interbody fusion via a transmuscular limited approach.
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Data availability
Not applicable.
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Acknowledgements
Data statistics, Patrícia Martinková, Ph.D., Department of Statistical Modelling, Institute of Computer Science, Czech Academy of Sciences, Pod Vodárenskou věží 2, 182 07 Prague, Czech Republic, Web: https://www.cs.cas.cz/martinkova/.
Funding
This work was supported by the internal project of Bulovka University Hospital grant nr. “22-IGS07-12”. Supported by Ministry of Health, Czech Republic – conceptual development of research organization (FNBul, 00064211).
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Josef Vcelak, Adam Kral, Adrea Speldova, and Ladislav Toth. The first draft of the manuscript was written by Josef Vcelak and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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The study was performed with the approval of the institutional ethics committee of the university hospital (University Hospital Bulovka, Prague, Czech Republic, 1 July 2022). This study was performed in line with the principles of the Declaration of Helsinki.
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Vcelak, J., Kral, A., Speldova, A. et al. The Effect of Indirect Decompression Through Extraforaminal Interbody Fusion for Degenerative Lumbar Disease. JOIO 57, 2058–2065 (2023). https://doi.org/10.1007/s43465-023-01008-z
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DOI: https://doi.org/10.1007/s43465-023-01008-z