Abstract
Introduction
The impact of pre-existing degeneration of a disc underlying a lumbar arthrodesis via lateral approach on long-term clinical outcome has, to our knowledge, not been studied. When performing arthrodesis between L2 and L5, its extension to L5S1 is challenging because it imposes a different surgical approach. Therefore, surgeon’s temptation is to not include L5S1 in the fusion even in case of discopathy. Our objective was to study the influence of the preoperative L5S1 status on the clinical outcome of lumbar lateral interbody fusion (LLIF) using a pre-psoatic approach between L2 and L5 with a minimum follow-up of 2 years.
Material and methods
Patients who underwent LLIF from L2 to L5 between 2015 and 2020 were included in our study. We studied VAS, ODI, and global clinical outcome before surgery and at last follow-up. The L5–S1 disc was radiologically studied in preoperative imaging. Patients were included in two groups (A “with” and B :without” L5–S1 disc degeneration) to compare the clinical outcomes at last follow-up. Our primary objective was to evaluate the rate of L5–S1 disc revision surgery at last follow-up.
Results
102 patients were included. 2 required L5–S1 disc surgery following overlying arthrodesis. Our results showed a significant improvement in the patients' clinical outcomes at the last follow-up (p < 0.0001). We did not find any significant difference on clinical criteria between groups A & B.
Conclusion
A preop L5S1 disc degeneration does not seem to impact the final clinical outcomes after lumbar lateral interbody fusion at a minimal two years F.U. It should not be systematically involved in an overlying fusion.
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Data availability
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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JA is the overall study principal investigator. LP, AR, PA, DJ, DT, QS, and JA participated in the study conception and design, contributed to the writing of the study protocol, drafting, and editing of this manuscript and read and approved the final manuscript.
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Pr POIGNARD Alexandre, Dr DELAMBRE Jerome and Dr LAVANTES Paul have no relevant financial or non-financial interests to disclose. Dr DUFOUR Thierry is consultant for and has some royalties from ZimVie. Dr QUEINNEC Steffen is consultant for STRYKER compagny and NEO compagny, also shareholder and proxy for the NEO compagny. Dr ARVIEU Robin is consultant for NEO company. Pr ALLAIN Jerome has consultant for STRYKER compagny and NEO company and MEDTRONIC and has some royalties from ZimVie.
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Lavantes, P., Poignard, A., Delambre, J. et al. Influence of the preoperative L5S1 disc state on lateral L2 to L5 fusion’s outcomes at an average follow-up of 3,5 years (minimum 2 years). Eur Spine J 32, 2344–2349 (2023). https://doi.org/10.1007/s00586-023-07771-9
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DOI: https://doi.org/10.1007/s00586-023-07771-9