Evidence map›Paper›PMID 41413735›Full record

ArticleSpine deformity2026

Improving the reliability of the thumb ossification composite index in patients with scoliosis using EOS imaging with acrylic plates.

Arihisa Shimura, Hidetoshi Nojiri, Takatoshi Okuda, Hiromitsu Takano, Shota Tamagawa, Juri Teramoto, Hisashi Ishibashi, Yuta Sugawara, Kazuki Nakai, Muneaki Ishijima

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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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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Arihisa ShimuraDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.ORCID http://orcid.org/0009-0007-3264-9962
Hidetoshi NojiriDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. hnojiri@juntendo.ac.jp.
Takatoshi OkudaDepartment of Orthopedic Surgery, Koto Hospital, Tokyo, Japan.
Hiromitsu TakanoDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Shota TamagawaDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Juri TeramotoDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Hisashi IshibashiDepartment of Orthopaedics, Juntendo University Faculty of Medicine, Tokyo, Japan.
Yuta SugawaraDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
Kazuki NakaiDepartment of Orthopaedics, Juntendo University Faculty of Medicine, Tokyo, Japan.
Muneaki IshijimaDepartment of Medicine for Orthopaedics and Motor Organ, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to evaluate the use of an acrylic plate to stabilize hand positioning during EOS imaging to improve the Thumb Ossification Composite Index (TOCI) assessment in pediatric patients with idiopathic scoliosis. The goal was to implement a more efficient workflow with reduced radiation exposure, while maintaining diagnostic accuracy without relying on conventional hand radiography.

methodsThis prospective study involved 84 patients, aged 7-13 years, divided into two groups: Group A (42 patients without acrylic plate stabilization) and Group B (42 patients with acrylic plate stabilization). Both groups underwent whole-spine imaging using the EOS system, and the reliability of EOS imaging in the evaluation of TOCI was compared with that of conventional hand radiography. Statistical analysis was used to assess inter- and intra-rater reliabilities using Cohen's weighted kappa.

resultsGroup A had an average inter-rater reliability of 0.826, whereas Group B showed a significantly higher reliability of 0.905 (p = 0.0127). The intra-rater reliability for Group A ranged from 0.747 to 0.748, whereas for Group B, it was 0.931 (p = 0.0017).

conclusionEOS imaging with an acrylic plate is a reliable, low-radiation alternative to traditional radiography for TOCI assessment in scoliosis management. Although further improvements are required to match conventional methods in terms of accuracy, the reduced radiation exposure offers significant benefits to pediatric patients.

Indexed as

OsteogenesisRadiographyScoliosisThumbAdolescentChildFemaleHumansMaleProspective StudiesReproducibility of ResultsEOS imagingInter-rater reliabilityIntra-rater reliabilityScoliosis treatmentThumb Ossification Composite Index

Identifiers

PMID41413735

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