ArticleOrthopaedic surgery2025
Evaluation of Indirect Decompression Effect After Extreme Lateral Lumbar Interbody Fusion Using Three-Dimensional Volumetric Measurements-A Retrospective Study.
Article in Orthopaedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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12 authors.
Funding
Abstract
backgroundTwo-dimensional (2D) radiographic methods are suggested for evaluating radiographic outcomes following indirect decompression via extreme lateral interbody fusion (XLIF). Nonetheless, assessing neural decompression in a single imaging plane could potentially lead to an underestimation of the effects on central canal and foraminal volumes.
objectiveThis study aims to evaluate the radiographic changes associated with XLIF procedures using three-dimensional (3D) volumetric measurements and to investigate the effect of indirect decompression achieved through this procedure.
methodsThe retrospective clinical and radiological data of 44 patients between June 2019 and June 2022 who underwent single- or multilevel XLIF were analyzed. Preoperative and postoperative computed tomography (CT) scans facilitated 3D reconstructions. The effect of indirect decompression, manifesting as the elevation of the cranial vertebra, was quantified by measuring the volumetric change in the spinal canal, calculated through the subtraction of the spinal canal's geometry from a cylinder predefined both preoperatively and postoperatively. The relationship between these volumetric changes and clinical outcomes was then determined. Correlations between changes in volumetric measurements and clinical outcomes were assessed using Pearson's or Spearman's correlation coefficients, depending on the data distribution.
resultsChange in the spinal canal volume (ΔV) due to the XLIF proved to be significant (mean ΔV = 1629.28 ± 775.43 mm
conclusionThe developed method demonstrates accuracy, reproducibility, and applicability for analyzing XLIF, with significant potential for application in other spinal surgical methods. The volumetric changes exhibit predictive capability regarding the extent of indirect spinal canal decompression. A larger ΔV correlates with greater clinical benefits observed in XLIF surgery.
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