What question did this study set out to answer?

To compare short-term recovery and alignment outcomes of interspinous process fixation and posterior lumbar interbody fusion following decompression for grade I spondylolisthesis.

February 2, 2026Journal of Orthopaedic Surgery and Research0 citationsOpen Access

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Interspinous process fixation versus posterior lumbar interbody fusion following decompression for single-level grade I degenerative spondylolisthesis: a retrospective propensity score-matched study

JMJingbo Ma TLTusheng Li NSNan Shen

Key Points

To compare short-term recovery and alignment outcomes of interspinous process fixation and posterior lumbar interbody fusion following decompression for grade I spondylolisthesis.
Retrospective propensity score-matched study design
Evaluation of clinical recovery and sagittal alignment
Comparison between interspinous process fixation and posterior lumbar interbody fusion
ISPF showed better short-term clinical recovery
ISPF maintained sagittal alignment better than PLIF
PLIF resulted in greater slip correction
Both methods yielded similar long-term clinical outcomes

Abstract

ISPF provided better short-term clinical recovery and maintenance of sagittal alignment, whereas PLIF offered greater slip correction. Both procedures yielded comparable long-term clinical outcomes, supporting individualized surgical decision-making in patients with degenerative LSS and Grade I spondylolisthesis.

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Cite This Study

Ma et al. (Fri,) studied this question.

synapsesocial.com/papers/6980fefbc1c9540dea811825 https://doi.org/https://doi.org/10.1186/s13018-026-06683-w

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