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Which surgery heals big bone gaps faster? new study aims to find out

NCT ID NCT07389681

Knowledge-focused Sponsor: University Hospital, Bordeaux Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 250 people who need surgery to repair large bone defects in their lower leg. Researchers will compare two techniques: the Masquelet method and using electromagnetic transport nails. The main goal is to see which approach leads to faster bone healing, as seen on X-rays. Participants will also report on their quality of life and how well their leg functions after surgery.

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 study could help surgeons choose the best technique for repairing large bone defects, potentially improving healing and recovery.
What could go wrong
This is an observational study, not a treatment trial. It only compares existing methods, so it won't directly test a new cure or therapy.

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 250 people

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

Started

Apr 2026

Expected to finish

Mar 2034

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 years and older

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 ≥ 18 years * Minor patient, able to consent to data collection, with the consent of the owner(s) * Patient consulting for a medical reason involving a loss of bone substance in the lower limb in an investigating centre linked to one of these aetiologies for which a reconstruction procedure using a transport nail or Masquelet technique is envisaged: * Tumour pathologies requiring * Septic or aseptic pseudarthrosis * Traumatic pathology * Infectious pathologies Exclusion Criteria: * Patients under guardianship or curatorship, * Individuals deprived of their liberty by judicial or administrative decision, * Individuals receiving involuntary psychiatric care requiring the consent of their legal representative, * Individuals unable to express their consent, * Individuals under legal protection, * Patients with an indication for bone reconstruction using a technique other than the Masquelet technique and nail transport, * Patients not covered by a social security scheme, * Patients ineligible for bone reconstruction due to their comorbidities

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As listed by the trial registrant

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

Critical-size bone defect

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

  • CHU de Bordeaux

    RECRUITING

    Bordeaux, 33000, France