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A radiolucent chair for sitting-posture radiographs in non-ambulatory children: use in biplanar digital slot-scanning

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Abstract

EOS imaging (EOS System; EOS imaging, Paris, France) enables fast 2-D/3-D imaging of children in standing load-bearing position. Non-ambulatory children with neuromuscular scoliosis need evaluation of their spinal balance while in a normal daily position. We designed a customized chair fitting the EOS patient-area dimensions to obtain images in natural sitting postures. The chair is a 360° rotating orthopaedic chair made of fully radiolucent polyethylene and equipped with an adjustable headrest and three-point belts. Out of 41 consecutive patients, 36 (88%, 95% confidence interval 74–96%) had successful imaging. In most patients with severe neuromuscular trunk deformities, the EOS system combined with our chair was useful for assessing preoperative trunk collapse, pelvic obliquity and postoperative corrections in all planes. This specific device changed our daily practice for the assessment of spinal deformities in non-ambulatory patients.

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Conflicts of interest

Raphaël Vialle is the conceptor of the chair. The prototype was built by Groupe Lagarrigue per our request. The chair design was a collaboration between Vialle and Catherine Seiler. The EOS chair prototype tested in this collaborative work was provided free of charge by the Groupe Lagarrigue. Seiler did not receive any specific support for this project. Vialle did not receive any specific support for this project. The other authors of this work have no disclosures and did not receive any specific support for this project. No contract was written between the authors and any company.

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Authors and Affiliations

  1. Armand Trousseau Hospital, Department of Pediatric Orthopaedics, Université Pierre et Marie Curie-Paris 6, 26 avenue du Dr Arnold Netter, 75571, Paris Cedex 12, France

    Houssam Bouloussa, Arnaud Dubory, Manon Bachy & Raphaël Vialle

  2. Groupe Lagarrigue, Clichy, France

    Catherine Seiler

  3. Armand Trousseau Hospital, Department of Pediatric Imaging, Université Pierre et Marie Curie-Paris 6, Paris, France

    Baptiste Morel

  4. The MAMUTH Hospital-University Department for Innovative Therapies in Musculoskeletal Diseases, Armand Trousseau Hospital, Paris, France

    Raphaël Vialle

Authors
  1. Houssam Bouloussa
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  2. Arnaud Dubory
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  3. Catherine Seiler
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  4. Baptiste Morel
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  5. Manon Bachy
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  6. Raphaël Vialle
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Corresponding author

Correspondence to Raphaël Vialle.

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Bouloussa, H., Dubory, A., Seiler, C. et al. A radiolucent chair for sitting-posture radiographs in non-ambulatory children: use in biplanar digital slot-scanning. Pediatr Radiol 45, 1864–1869 (2015). https://doi.org/10.1007/s00247-015-3374-0

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  • DOI: https://doi.org/10.1007/s00247-015-3374-0

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