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  • Oral presentation
  • Open Access

Prospective 100 first results of immediate scoliosis correction with the new lyon brace: ARTbrace

  • 1 and
  • 2
Scoliosis20149 (Suppl 1) :O35

  • Published:


  • Opposite Direction
  • Clinical Parameter
  • Frontal Plane
  • Cobb Angle
  • Fundamental Parameter


The immediate reducibility of the Cobb angle in brace is the fundamental parameter of success of non-surgical orthopedic treatment of scoliosis.


The objective of this work is to present the first results of the new Lyon brace (Asymmetrical Rigid Torsion brace) with immediate realization of the brace without plaster cast.


The new Lyon brace is constructed with two asymmetrical lateral polycarbonate pieces connected posteriorly at the midline by a vertical incurved bar. The brace reproduce a twisted column in the opposite direction of scoliosis. The shape is obtained by superposition of three segmental electronic moldings which will be superimposed by a new software: OrtenShape.


The results of a prospective series of the first 100 consecutive patients were studied using EOS X-ray and compared with results obtained by other braces.

Radiologically, in the frontal plane, the immediate in brace reduction is on average (0.72) (0.63 +- 0.19 for thoracic curves & 0.76 +- 0.26 for lumbar curves. These results can be classified:
  • Depending on the type of curvature:

thoracolumbar (0.98),

lumbar (0.71),

double major (0.67)

lumbar (0.67),

thoracic (0.64)
  • According to the criteria of the SRS (40 cases):

thoracic curves (0.66),

lumbar (0.83)
  • According to the initial angulation:

  1. 20

    -29° = (0.80)


30-39° = (0.65)

> 40° = (0.45)

In 51 cases with initial kyphosis <30°, improving the flat back is 9.25° from 19° to 28.25°.

Clinically, the push-up effect is : 1.64 cm.

After at least 1 month of continuous wearing, for thoracic rib hump improvement is (0.50) and for lumbar (0.85).

The improvement is 40% compared to the old plaster cast and Lyon brace and 60% compared to the Chêneau-Münster brace.

All radiological and clinical parameters improved significantly.


The new Lyon brace (ARTbrace) allows a better immediate in-brace reduction than the old Lyon brace. without need for a preliminary plaster cast.

Authors’ Affiliations

Clinique du Parc, Lyon, France
Lecante, Lyon, France


© de Mauroy and Pourret; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.