ArticleScientific reports2025
Predicting postoperative imbalance in adult spinal deformity staged surgery using predictive thresholds.
Article in Scientific reports, 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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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Two-stage surgeries are increasingly used to minimize complications in adult spinal deformity (ASD) correction, yet the specific contributions of lateral lumbar interbody fusion (LLIF) and posterior column osteotomy/posterior spinal fusion (PCO/PSF) remain underexplored. This study evaluates their roles in deformity correction and establishes predictive thresholds for optimizing surgical planning. A total of 151 ASD patients (mean age 69.5 years) underwent staged LLIF and PCO/PSF surgeries one week apart. Radiographic parameters were analyzed preoperatively (Pre-), post- 1st LLIF (M-), post- 2nd PCO/PSF (Post-), and at two-year follow-up (F-). Correction rates were 80.9% for PI-LL mismatch (35.5% LLIF, 64.5% PCO/PSF), 40.5% for pelvic tilt (39.4% LLIF, 60.6% PCO/PSF), and 69.1% for C7 SVA (45.7% LLIF, 54.3% PCO/PSF). Coronal correction of the Cobb angle reached 76.7% (33.1% LLIF, 66.9% PCO/PSF). Significant ODI and SRS-22 score improvements were noted at two years. Predictive thresholds for imbalance were M-SVA 75.3 mm, M-PI-LL 32.5°, and M-PT 35.5°. The 2nd PCO/PSF contributes more to correction, and predictive thresholds aid surgical planning, reducing postoperative imbalance for better outcomes.
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