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MRI 3D knee models could eliminate radiation in surgery planning

NCT ID NCT05912777

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

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 20, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This study tests whether 3D models of the knee built from MRI scans are as accurate as those from CT scans. Researchers will compare the two types of models in 58 adults with ACL tears who are scheduled for surgery. If MRI models prove precise, they could replace CT scans, sparing patients from radiation exposure while still helping surgeons plan procedures.

What this could mean

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

Active substance
MRI-based 3D knee reconstruction compared to CT-based reconstruction
What this could lead to
If MRI-based 3D models match CT accuracy, patients could avoid radiation exposure during pre-surgical planning.
What could go wrong
This is a small exploratory study; MRI-based models may not be precise enough for clinical use, and results may not apply broadly.

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

58 people

The number who actually took part.

Started

Sep 2023

Finished

May 2024

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 45 years

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: * Patient, male or female, aged between ≥ 18 and ≤ 45 years old * Patient eligible for ACL reconstruction * Patient with an MRI performed at the SANTY orthopedic center or according to the protocol defined by the radiologists of the orthopedic center SANTY * Patient with an MRI performed ≥ 3 weeks after ACL tear * Affiliated patient or beneficiary of a social security scheme * French-speaking patient who signed an informed consent Exclusion Criteria: * Patient with a surgical history on the affected knee * Patient with a multi-ligament lesion * Patient already included in another study * Protected patient: adult under guardianship, curatorship or other protection legal, deprived of liberty by judicial or administrative decision * Patient hospitalized without consent

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Conditions

The condition(s) this trial relates to.

Anterior Cruciate Ligament Injuries

As listed by the trial registrant

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

Acl tear

Contacts and locations

Locations

  • Hôpital Privé Jean Mermoz

    Lyon, 69008, France

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