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A New 3D Geometrical Modelisation of Adolescent Idiopathic Scoliosis and Conception of a Personal Brace (MODEL MAKER)

This study has been completed.
Information provided by (Responsible Party):
Rennes University Hospital Identifier:
First received: April 6, 2011
Last updated: November 25, 2014
Last verified: November 2014
Adolescent idiopathic scoliosis (AIS) involves complex tridimensional deformities of the spine. In case of progressive curve deformity, the use of spinal bracing remains the standard non operative treatment of moderate AIS. Most of the time, the different types of braces don't take into account the individual biomechanical properties of each patient's spine. Actually, it is essential to better understand the effect of the loads applied on the trunk and on the spine, and a 3D geometrical modelisation of these components is essential. Many studies have been publishing concerning the use of radiographs for the geometrical reconstruction of the spine, and more recently the EOS system. But even then, it is still necessary to obtain an important number of geometrical data and discretisation is still a long procedure.


Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: A New 3D Geometrical Modelisation of Adolescent Idiopathic Scoliosis and Conception of a Personal Brace

Resource links provided by NLM:

Further study details as provided by Rennes University Hospital:

Primary Outcome Measures:
  • Photographs of the back and spine radiographs for making a corset [ Time Frame: 3 years ]
    The torso shape reconstruction is realized thanks to the system Model Maker(Proteor®) on adolescent idiopathic patients. Model Maker allows to reconstruct the external shape of the human body from about 20 images steaming from a standard digital camera.The spine reconstruction is has for her obtained by means of a software interface, from tow standard clinical X-rays in the digital format (frontal and sagittal) and images were used by Model Maker for the external shape reconstruction.

Secondary Outcome Measures:
  • Recording of pressure from the brace [ Time Frame: 3 years ]
    The recording of pressure from the brace is done through a web of pressure positioned in the brace. It is a structure "teck scan (Expert-Seat, Ergoresearch Inc)" containing polymeric pressure sensors. The pressure exerted by the brace on the trunk is registered in different positions (standing, lying).

Enrollment: 11
Study Start Date: July 2011

Ages Eligible for Study:   12 Years to 15 Years   (Child)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with idiopathic scoliosis

Inclusion Criteria:

  • Age ≥ 12 years
  • Pre menarchial for the girls
  • Risser 0 et Risser 3 on X rays. Radiologic classification of spine maturity (ossification of the iliac crests). Five stages.
  • Cobb angle ≥25° and < 40°
  • Information to the parents and child, and signed approval

Exclusion Criteria:

  • No idiopathic scoliosis
  • Previous brace treatment
  • Immediate indication for surgery
  • Previous thoracic surgery
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Please refer to this study by its identifier: NCT01336114

Rennes University Hospital
Rennes, Brittany, France, 35033
Sponsors and Collaborators
Rennes University Hospital
Principal Investigator: philippe violas Rennes University Hospital
  More Information

Responsible Party: Rennes University Hospital Identifier: NCT01336114     History of Changes
Other Study ID Numbers: 2010-A01263-36
Study First Received: April 6, 2011
Last Updated: November 25, 2014

Additional relevant MeSH terms:
Spinal Curvatures
Spinal Diseases
Bone Diseases
Musculoskeletal Diseases processed this record on September 21, 2017