Hip angle study seeks to uncover clues for better impingement surgery

NCT ID NCT05678894

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

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares hip socket angles in different positions (standing, sitting, lying down) between people with femoro-acetabular impingement (a painful hip condition) and healthy volunteers. Researchers will use 3D CT scans and X-rays to measure these angles. The goal is to understand how pelvic tilt changes hip shape, which may improve surgical planning. About 140 adults aged 18-49 will take part.

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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 140 people

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

Started

Sep 2023

Expected to finish

Sep 2027

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 to 50 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 for symptomatic patients: * Patient at least 18 years of age but \< 50 years of age * Patient with a confirmed diagnosis of DWI for whom arthroscopic impingement surgery is proposed * Patient who has given and signed free and informed consent * A patient who is a member of a social security plan or a beneficiary of such a plan Healthy volunteer inclusion criteria: * Person at least 18 years of age but \< 50 years of age * Person with no existing DWI diagnosis * Person who has given and signed free and informed consent * Person affiliated with a social security plan or beneficiary of such a plan Exclusion Criteria: * Patient who has already undergone surgery on the same hip * Patient with previous spine surgery * Patient already included in the study for the opposite hip * Pregnant or breastfeeding patient * Patient who did not give consent * Patient for whom it is impossible to give informed information * Mentally impaired or any other reason that may interfere with understanding * Patient under court protection, guardianship or curatorship * Patient in an exclusion period as determined by another study

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Conditions

The condition(s) this trial relates to.

Femoracetabular Impingement

As listed by the trial registrant

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

Femoro acetabular impingement

How to take part

Only the study team decides who joins. These are the ways to reach them.

The places running it

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

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

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A doctor treating you

A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Hip angle study seeks to uncover clues for better impingement surgery

What the study statuses mean