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Why do some hips hurt? scientists investigate hidden clues in movement and spine shape

NCT ID NCT06272292

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at young men with a hip condition called femoroacetabular impingement (FAI), where extra bone growth causes pain during movement. Researchers will use 3D motion analysis and low-dose X-rays to compare how the hip and spine move in people with and without symptoms. The goal is to uncover why some people with the same bone shape feel pain while others do not, which could lead to better diagnosis and treatment.

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 could help doctors better understand why some people with hip shape abnormalities develop pain while others do not, potentially improving diagnosis and treatment.
What could go wrong
This is an observational study, not a treatment trial. It will not test any therapy, so it cannot directly lead to a cure or symptom relief. Results may not apply to women or older adults.

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 99 people

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

Started

Jul 2022

Expected to finish

Dec 2026

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

21 to 35 years

Sex

Male participants only

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.

Exclusion Criteria: \- Participants in all three study groups will be excluded if x-ray scans shows a pincer FAI morphology or radiological sign of osteoarthritis. Inclusion Criteria: * All participants will be males aged between 21 and 35 years old. * For symptomatic CAM-FAI patients 1. The presence of CAM-FAI morphology at the head-neck junction of the femur 2. Alpha angle \>60 3. Reduced hip internal rotation (IR\<15) * For asymptomatic CAM controls: 1\. Exhibit asymptomatic CAM on x-ray scansAlpha angle \>60 * For Healthy control group: 1. Exhibit no symptoms or abnormal morphologies of the proximal femur (Alpha angle \>60 , IR\>15).

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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.

How to take part

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

  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

    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.

Contacts and locations

Locations

  • University Hospitals of Leuven

    RECRUITING

    Leuven, Vlaams-Brabant, 3000, Belgium

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