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Standing x-rays may reveal what lying scans miss in shoulder replacement planning

NCT ID NCT07819149

Diagnosis Sponsor: GCS Ramsay Santé pour l'Enseignement et la Recherche Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 14, 2026 · Last updated Sep 18, 2026 · Updated 3 times

Summary

People scheduled for total shoulder replacement often get a CT scan while lying on their back to measure how far the upper arm bone slips backward. Researchers want to know whether that measurement changes when a person stands. The trial uses a low-dose biplanar X-ray booth called EOS to scan participants in both positions and compare the results. About 92 adults scheduled for shoulder replacement take part.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
biplanar fluoroscopy EOS imaging, a low-dose standing X-ray scan
What this could lead to
If standing scans give a clearer picture of the shoulder than lying scans, surgeons could plan shoulder replacements using measurements that better match how people actually move.
What could go wrong
This is a small imaging study, not a treatment trial. It may show that standing and lying scans agree, or the findings may not change how surgeons choose or place implants.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 92 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Jul 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Major * Scheduled for shoulder arthroplasty * Having undergone a CT scan of the shoulder scheduled for arthroplasty prior to the operation * Patient having signed an informed consent form * Patient affiliated with a social security scheme or beneficiary of such a scheme, according to Article L.1124-1 of the Public Health Code Exclusion Criteria: * Contraindications from surgeons * Contraindication to EOS® examination * Anthropometry incompatible with EOS® examination * Scheduled for shoulder arthroplasty due to : fracture, sequelae of a fracture, history of glenoid graft * History of fracture of the humerus, scapula, or clavicle * Vulnerable and/or protected individual: adult under guardianship, curatorship, or other legal protection, deprived of liberty by judicial or administrative decision * Pregnant, breastfeeding, or postpartum woman

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Shoulder arthroplasty

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Hôpital privé Jean Mermoz

    Lyon, 69008, France

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