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KyphosisVICON-SPINENCT03536403

Study of Spino-pelvic Sagittal Balance by Vicon® Optoelectronic System

A study testing EOS X-rays and 8-meters walk test in people with Kyphosis, run by University Hospital, Rouen at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Spinal diseases often induce gait disorders with multifactorial origins such as lumbar pain, radicular pain, neurologic complications, or spinal deformities. However, radiography does not permit an analysis of spinal dynamics; therefore, sagittal balance dynamics during gait remain largely unexplored. Read more about this study

Who is it for?
Ages 18 to 40 years, men onlyHealthy volunteers can take part
Conditions the study is for
Kyphosis
What is being tested?
EOS X-rays and 8-meters walk test
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteFrance
Study dates
17 Dec 2018to 16 Jan 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male subjects
  • Aged between 20 to 40 years
  • Height between 165 to 190 centimeters
  • Asymptomatic subjects from spinal point of view
  • BMI < 30 kg/m²
  • Affiliated to French Social Security
  • Subjects having read the information note and signed informed consent

Who cannot join

  • Subjects with neurological, vestibular, rheumatological or orthopedic pathology which can influence walking and balance
  • Subjects with known spinal pathology
  • Subjects with visible morphologic spinal deformity
  • Subjects with significant visual impairment (visual acuity < 6/10) despite an optical correction port
  • Subjects unable to walk without help
  • Person placed under the safeguard of justice, guardianship or curatorship
  • Subjects involved in other biomedical research during this study
  • Subjects presenting an asymptomatic spinal pathology discovered at the inclusion on the spinal EOS images.

Trial locations and contacts

1 site in 1 country.

France1 site
  • Rouen University Hospital

    Rouen

Other trials in France

About this study

Official title: Study of Spino-pelvic Sagittal Balance by Vicon® Optoelectronic System - Model of Non-invasive Kyphosis

Spinal diseases often induce gait disorders with multifactorial origins such as lumbar pain, radicular pain, neurologic complications, or spinal deformities. However, radiography does not permit an analysis of spinal dynamics; therefore, sagittal balance dynamics during gait remain largely unexplored. This prospective and controlled study try to assess the Vicon system for detecting sagittal spinopelvic imbalance and to determine the modification induced by ant induced anterior sagittal imbalance on the kinetics walking parameters

Conditions
Kyphosis
Being tested
EOS X-rays, 8-meters walk test
Medical subject headings
Kyphosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EOS X-raysRadiation

    EOS X-rays is done with et without a kyphosis induced corset

  • 8-meters walk testOther

    8-meters walk test measured by optoelectronic Vicon system with et without a kyphosis induced corset

Study groups in NCT03536403
Study groupRoleWhat they receive
healthy volunteersExperimentalEOS X-rays is done with et without a kyphosis induced corset and 8-meters walk test measured by optoelectronic Vicon system with et without a kyphosis induced corset
Receives: Radiation: EOS X-rays; Other: 8-meters walk test

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Variations in spino-pelvic sagittal balance measured by EOS X-ray

    Variations in spino-pelvic sagittal balances measured with et without a kyphosis induced corset measured by the GSC7 on EOS X-rays and by the C7-T10-Sacrum angle on optoelectronic Vicon system.

    Measured: 1 hour

Secondary outcomes (3)
  1. Position of the ground point projection of the center of mass

    Position of the ground point projection of the center of mass with and without corset

    Measured: 1 hour

  2. vertical deceleration of the center of mass during the second part of the oscillating phase

    vertical deceleration of the center of mass during the second part of the oscillating phase with and without corset.

    Measured: 1 hour

  3. Velocity of the center of mass during the second part of the oscillating phase

    Velocity of the center of mass during the second part of the oscillating phase with and without corset.

    Measured: 1 hour

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 May 2018
  2. Study start17 Dec 2018
  3. Primary completion16 Jan 2020
  4. Study completion16 Jan 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03536403
Sponsor's protocol ID
2016/066/HP
Acronym
VICON-SPINE
Status last verified
Apr 2026
First submitted
26 Apr 2018
Last updated
17 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Ould-Slimane M, Latrobe C, Michelin P, Chastan N, Dujardin F, Roussignol X, Gauthe R. Noninvasive Optoelectronic Assessment of Induced Sagittal Imbalance Using the Vicon System. World Neurosurg. 2017 Jun;102:425-433. doi: 10.1016/j.wneu.2017.03.099. Epub 2017 Mar 30.

    PubMed 28366752

Questions about this trial

What is this clinical trial studying?

A study testing EOS X-rays and 8-meters walk test in people with Kyphosis, run by University Hospital, Rouen at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Variations in spino-pelvic sagittal balance measured by EOS X-ray (time frame: 1 hour). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03536403, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Apr 2026.

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