Femoroacetabular ImpingementIMAHANCHENCT07271277
3D MRI Assessment of Femoroacetabular Impingement in Patients With ACL Rupture - Exploratory Study
A study testing 3D MRI in people with Femoroacetabular Impingement, run by GCS Ramsay Santé pour l'Enseignement et la Recherche at 1 site in France.
Trial summary
Anterior cruciate ligament (ACL) tears are among the most common sports injuries. Numerous studies have shown that reduced hip rotation may play a role in ACL tears. The same question may also arise for hip injuries such as femoroacetabular impingement (FAI). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Femoroacetabular Impingement
- What is being tested?
- 3D MRI
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteFrance
- Study dates
- 1 Oct 2026to 31 Jan 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patient, male or female, aged 18 years or older
- Patient with a primary complete ACL rupture
- Patient affiliated with or covered by a social security scheme
- Patient who speaks French and has signed an informed consent form
Who cannot join
- Patient with multi-ligament injury
- Patients with a history of hip fracture
- Patients with a history of hip surgery
- Patients with a contraindication to MRI
- Protected individuals: adults under guardianship, curatorship or other legal protection, deprived of their liberty by judicial or administrative decision
- Pregnant or breastfeeding women
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
France1 site
Hôpital Privé Jean Mermoz
Lyon, France, 69008
Bertrand SONNERY-COTTET, MD, + 33 4 37 53 00 22, sonnerycottet@aol.com
About this study
Anterior cruciate ligament (ACL) tears are among the most common sports injuries. Numerous studies have shown that reduced hip rotation may play a role in ACL tears. The same question may also arise for hip injuries such as femoroacetabular impingement (FAI).
This research is based on the hypothesis that there is a relationship between FAI and ACL injury. In this context, 3D MRI of the hip would provide morphological details of the hip that are not currently available with other imaging techniques, thereby enabling early identification of FAI. This is the reason why this research has been initiated.
Read the detailed description
Anterior cruciate ligament (ACL) tears are among the most common sports injuries. It is estimated that approximately 150,000 ACL reconstructions are performed each year in the United States. Numerous studies have shown that reduced hip rotation may play a role in ACL tears. The same question may also arise for hip injuries such as femoroacetabular impingement (FAI).
This research is based on the hypothesis that there is a relationship between FAI and ACL injury. In this context, 3D MRI of the hip would provide morphological details of the hip that are not currently available with other imaging techniques, thereby enabling early identification of FAI. This is the reason why this research has been initiated.
- Conditions
- Femoroacetabular Impingement
- Being tested
- 3D MRI
- Keywords
- femoroacetabular impingement
- Medical subject headings
- Femoracetabular Impingement
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
3D MRIOther
Intervention consists of performing a 3D MRI scan of both hips using a T1 sequence.
| Study group | Role | What they receive |
|---|---|---|
| FAI arm | Experimental | FAI arm involves patients with ACL rupture. A 3D MRI scan of both hips of theses patients will be performed. Receives: Other: 3D MRI |
What is being measured
The primary outcome is the main question the study is designed to answer.
FAI (femoroacetabular impingement) prevalence
Prevalence of femoroacetabular impingement will be expressed as %. It will be measured on the injured knee side (i.e., ACL rupture) and on the healthy knee side (i.e., uninjured).
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Dec 2025
- Study start1 Oct 2026 (estimated)
- Primary completion31 Jan 2028 (estimated)
- Study completion31 Jan 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Femoroacetabular ImpingementStudies of the same condition, open and under way.
- More trials run by GCS Ramsay Santé pour l'Enseignement et la RechercheThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 50 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07271277
- Sponsor's protocol ID
- 2025-A01269-40
- Acronym
- IMAHANCHE
- Status last verified
- Aug 2026
- First submitted
- 27 Nov 2025
- Last updated
- 20 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 3D MRI Assessment of Femoroacetabular Impingement in Patients With ACL Rupture - Exploratory Study
- ClinicalTrials.gov ID
- NCT07271277
- Acronym / sponsor ID
- IMAHANCHE / 2025-A01269-40
- Conditions
- Femoroacetabular Impingement
- Keywords
- femoroacetabular impingement
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 50 participants (estimated)
- Lead sponsor
- GCS Ramsay Santé pour l'Enseignement et la RechercheUniversity, hospital or other
- Study start
- 1 Oct 2026 (estimated)
- Primary completion
- 31 Jan 2028 (estimated)
- Study completion
- 31 Jan 2028 (estimated)
- First posted
- 9 Dec 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Anterior cruciate ligament (ACL) tears are among the most common sports injuries. Numerous studies have shown that reduced hip rotation may play a role in ACL tears. The same question may also arise for hip injuries such as femoroacetabular impingement (FAI).
This research is based on the hypothesis that there is a relationship between FAI and ACL injury. In this context, 3D MRI of the hip would provide morphological details of the hip that are not currently available with other imaging techniques, thereby enabling early identification of FAI. This is the reason why this research has been initiated.
Detailed description
Anterior cruciate ligament (ACL) tears are among the most common sports injuries. It is estimated that approximately 150,000 ACL reconstructions are performed each year in the United States. Numerous studies have shown that reduced hip rotation may play a role in ACL tears. The same question may also arise for hip injuries such as femoroacetabular impingement (FAI).
This research is based on the hypothesis that there is a relationship between FAI and ACL injury. In this context, 3D MRI of the hip would provide morphological details of the hip that are not currently available with other imaging techniques, thereby enabling early identification of FAI. This is the reason why this research has been initiated.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| FAI arm | Experimental | Other: 3D MRIFAI arm involves patients with ACL rupture. A 3D MRI scan of both hips of theses patients will be performed. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Patient, male or female, aged 18 years or older
- Patient with a primary complete ACL rupture
- Patient affiliated with or covered by a social security scheme
- Patient who speaks French and has signed an informed consent form
Key exclusion criteria (6 listed)
- Patient with multi-ligament injury
- Patients with a history of hip fracture
- Patients with a history of hip surgery
- Patients with a contraindication to MRI
- Protected individuals: adults under guardianship, curatorship or other legal protection, deprived of their liberty by judicial or administrative decision
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 3D MRIIntervention consists of performing a 3D MRI scan of both hips using a T1 sequence. | Other | FAI arm |
Primary outcome
FAI (femoroacetabular impingement) prevalence
Time frame: Day 1
Prevalence of femoroacetabular impingement will be expressed as %. It will be measured on the injured knee side (i.e., ACL rupture) and on the healthy knee side (i.e., uninjured).
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Aug 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 3D MRI in people with Femoroacetabular Impingement, run by GCS Ramsay Santé pour l'Enseignement et la Recherche 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 4 inclusion and 6 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: opening soon, as of the sponsor's last update on 20 Aug 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Bertrand SONNERY-COTTET, MD (+33 4 37 53 00 22, sonnerycottet@aol.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
FAI (femoroacetabular impingement) prevalence (time frame: Day 1). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 20 Aug 2026.