Accuracy of vertebral rotation assessment using biplanar imaging technology in adolescent idiopathic scoliosis.

Denver Kraft, John Birch, Jaysson Brooks, David Thornberg, Chan-Hee Jo, Megan Johnson

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Article in Spine deformity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Denver KraftDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.ORCID http://orcid.org/0000-0003-1745-997X

John BirchDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.ORCID http://orcid.org/0000-0002-8888-2487

Jaysson BrooksDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.ORCID http://orcid.org/0000-0002-8523-1750

David ThornbergDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.ORCID http://orcid.org/0000-0002-6876-0458

Chan-Hee JoDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA.ORCID http://orcid.org/0000-0003-2159-2095

Megan JohnsonDepartment of Orthopedics, Scottish Rite for Children, 2222 Welborn Street, Dallas, TX, 75219, USA. Megnan.Johnson@tsrh.org.ORCID http://orcid.org/0000-0002-5968-9469

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study is to determine the accuracy of biplanar radiography in calculating vertebral axial rotation in patients with adolescent idiopathic scoliosis (AIS).

methodsA single-center retrospective review of patients with AIS who received a preoperative CT and biplanar imaging (EOS imaging, Paris, France) was performed. Axial rotation of each vertebra was assessed by EOS and by true axial CT images. The relative vertebral rotation difference (VRD) of each vertebra in relation to the apex was calculated to standardize the reference plane. Paired testing and correlations were used to compare the VRD between the two imaging modalities.

results32 patients were reviewed. The average major curve cobb was 66° ± 10°. There was no significant difference between modalities on paired analysis except at T3, T4, T5, and T6 (p = 0.03; p = 0.01; p = 0.02; p = 0.01). Despite these differences, there were moderate to strong correlations between both modalities at every level.

conclusionDespite minor differences in VRD in the proximal thoracic spine, our findings suggest that axial rotation measured by EOS is an accurate representation of rotational deformity in the uninstrumented AIS spine.

Indexed as

RadiographyScoliosisThoracic VertebraeTomography, X-Ray ComputedAdolescentChildFemaleHumansMaleRetrospective StudiesRotation3D reconstructionAdolescent idiopathic scoliosisAxial rotationBiplanar radiographyComputed tomographyEOS imaging

Identifiers

PMID41998315

DOI10.1016/j.medengphy.2009.01.003

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