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Hidden shoulder tissue changes may explain recurrent dislocations
NCT ID NCT04847180
First seen Jun 27, 2026 · Last updated Jul 17, 2026 · Updated 2 times
Summary
This study examined tissue samples from the shoulder capsule of 40 patients to see if certain changes are linked to shoulder instability. Researchers compared samples from patients with unstable shoulders to those without. The goal was to better understand these tissue changes, which could eventually lead to improved surgical repairs.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this research could help doctors better understand why some shoulders become unstable, potentially leading to new surgical techniques.
- What could go wrong
- This is a small, early-stage observational study with only 40 participants. It does not test any treatment, so it may not lead to direct patient benefits.
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
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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
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40 people
The number who actually took part.
- Started
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Aug 2020
- Finished
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Feb 2024
- Lead sponsor
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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
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18 to 40 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: Instability Group * Patient, male or female, over 18 years old and up to 40 years old * Patient operated for antero-inferior shoulder instability * Subject affiliated or beneficiary of a social security scheme * Patient having signed the free and informed consent comparativ group * Patient, male or female, over 18 years old and up to 40 years old * Patient operated for a reason other than unstable shoulder * Subject affiliated or beneficiary of a social security scheme * Patient having signed the free and informed cons Exclusion Criteria: * History of surgery on the affected shoulder * Capsuloligamentous disease (Ehler Danlos) * History of instability (dislocation, subluxation) in witnesses * Patient participating in another clinical study * Protected patient: adult under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision; * Pregnant, breastfeeding or parturient woman; * Patient hospitalized without consent.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Clinique de l'Union
Saint-Jean, 31240, France