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European Spine Journal

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Open Access 02-03-2024 | Adolescent Idiopathic Scoliosis | Original Article

The effect of Providence night-time bracing on the sagittal profile in adolescent idiopathic scoliosis

Authors: Martin Heegaard, Niklas Tøndevold, Benny Dahl, Thomas B. Andersen, Martin Gehrchen, Søren Ohrt-Nissen

Published in: European Spine Journal | Issue 4/2024

Abstract

Purpose

Adolescent idiopathic scoliosis (AIS) is characterized by coronal scoliosis and often a sagittal hypokyphosis. The effect of bracing on the sagittal profile is not well understood. The aim of this study is to assess the effect of night-time bracing on the sagittal profile in patients with AIS.

Methods

We retrospectively included AIS patients with a main curve of 25–45° treated with a night-time brace in our institution between 2005 and 2018. Patients with estimated growth potential based on either Risser stage, hand X-rays, or menarchal status were included. Coronal and sagittal radiographic parameters were recorded at both brace- initiation and -termination. Patients were followed until surgery or one year after brace termination. Results were compared to a published cohort of full-time braced patients.

Results

One hundred forty-six patients were included. Maximum thoracic kyphosis (TK) increased 2.5° (± 9.7) (p = 0.003), corresponding to a 3.5-fold relative risk increase post bracing in TK compared to a full-time brace cohort. Twenty-seven percent (n = 36) of the patients were hypokyphotic (T4/T12 < 20°) at brace initiation compared with 19% (n = 26) at brace termination (p = 0.134). All other sagittal parameters remained the same at follow-up. We found no association between progression in the coronal plane and change in sagittal parameters.

Conclusion

This is the first study to indicate that night-time bracing of AIS does not induce hypokyphosis. We found a small increase in TK, with a substantially lower risk of developing flat back deformity compared to full-time bracing. The coronal curve progression was not coupled to a change in TK.

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Title: The effect of Providence night-time bracing on the sagittal profile in adolescent idiopathic scoliosis
Authors: Martin Heegaard
Niklas Tøndevold
Benny Dahl
Thomas B. Andersen
Martin Gehrchen
Søren Ohrt-Nissen
Publication date: 02-03-2024
Publisher: Springer Berlin Heidelberg
Keyword: Adolescent Idiopathic Scoliosis
Published in: European Spine Journal / Issue 4/2024
Print ISSN: 0940-6719
Electronic ISSN: 1432-0932
DOI: https://doi.org/10.1007/s00586-024-08186-w

Keynote webinar | Spotlight on medication adherence

Springer Medicine

The effect of Providence night-time bracing on the sagittal profile in adolescent idiopathic scoliosis

Abstract

Purpose

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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