{
  "abstract": "Purpose: The preoperative planning of adolescent idiopathic scoliosis (AIS) remains largely debated. We hypothesized that adopting a biomechanical energetic framework could provide valuable insights for exploring the impact of spinal arthrodesis. Using this approach, we conducted a comparative analysis to quantify discrepancies between in silico simulations derived from preoperative radiographs and the actual three-dimensional spinal alignment obtained from post-operative imaging. Methods: Fifty-two consecutive patients with Lenke Type 1 AIS (mean age: 16 years; mean thoracic Cobb angle: 52°) who underwent posterior spinal fusion were included in the analysis. All patients had complete biplanar radiographs at three time points: preoperatively, post-operatively and at two-year follow-up. Discrepancies between in silico simulated surgery, calculated using preoperative radiographs and a biomechanical model, and actual clinical outcomes were quantified using two metrics: maximum coronal/sagittal deviations (MaxC/MaxS) from T1 to L5, and a comprehensive predictability factor (ac and as) measuring cumulative 3D position discrepancies across 17 vertebral levels, normalized by total spinal length. Results: Mean MaxC was 4.7 mm (SD=4.9) and MaxS was 5.7 mm (SD=3.8). Mean values of ac were 3.4% (SD=3.8) and as were 4.1% (SD=2.6). Of the cohort, 44 patients (90%) showed very good or good agreement in the coronal in silico simulation and 43 patients (88%) in the sagittal in silico simulation. When the coronal and sagittal results were combined, 38 patients (78%) showed very good or good agreement. Conclusion: The distribution of biomechanical energy obtained from preoperative radiographs is reliable to simulate spine alignment after arthrodesis in a Lenke 1 AIS cohort.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "Tristan Langlais"
    },
    {
      "name": "Jérôme Sales de Gauzy"
    },
    {
      "name": "Joe Rassi"
    },
    {
      "name": "Mathilde Bony"
    },
    {
      "name": "Baptiste Brun-Cottan"
    },
    {
      "name": "Amandine Eon"
    },
    {
      "name": "Franck Accadbled"
    },
    {
      "name": "Pascal Swider"
    },
    {
      "name": "Pauline Assemat"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/epwmtaq68zsrx.bib",
  "cited_by": 0,
  "doi": "10.1007/s43390-026-01353-7",
  "fulltext_url": null,
  "id": "epwmtaq68zsrx",
  "issns": [
    "2212-134X",
    "2212-1358"
  ],
  "landing_url": "https://hal.science/hal-05616293v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdv"
    ],
    [
      "hal",
      "0.spi"
    ],
    [
      "hal",
      "1.sdv.ib"
    ],
    [
      "hal",
      "1.sdv.mhep"
    ],
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      "1.spi.meca"
    ],
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      "2.sdv.ib.ima"
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      "hal",
      "2.sdv.mhep.rsoa"
    ],
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      "hal",
      "2.spi.meca.biom"
    ],
    [
      "openalex",
      "2746|Scoliosis diagnosis and treatment"
    ]
  ],
  "openalex": "W4414289534",
  "pdf_url": "https://hal.science/hal-05616293/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": "Springer Verlag",
  "ris": "https://research.draconitic.com/paper/epwmtaq68zsrx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:59Z",
      "native_id": "hal-05616293",
      "source": "hal",
      "url": "https://hal.science/hal-05616293v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "hal:1.sdv.ib",
      "subfield": "systems-synthetic"
    },
    {
      "field": "medicine",
      "origin": "hal:2.sdv.ib.ima",
      "subfield": "imaging"
    },
    {
      "field": "medicine",
      "origin": "hal:2.sdv.mhep.ped",
      "subfield": "reproductive-child"
    }
  ],
  "title": "Spinal energy balance can predict post-operative spine alignment in Lenke 1 Adolescent Idiopathic Scoliosis",
  "title_text": "Spinal energy balance can predict post-operative spine alignment in Lenke 1 Adolescent Idiopathic Scoliosis",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:59Z",
  "url": "https://research.draconitic.com/paper/epwmtaq68zsrx",
  "venue": "Spine Deformity",
  "versions": []
}