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Which bone-rebuilding method works best for kids with leg tumors?

NCT ID NCT06361290

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study looked back at medical records of 91 children who had a malignant bone tumor removed from their leg and then had the bone rebuilt using one of three techniques: induced membrane, vascularized fibula, or vascularized fibula plus a bone graft. The goal was to compare how quickly the bone healed, how many additional surgeries were needed, and overall function. The findings may help guide future treatment choices.

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 this study finds one technique clearly better, it could help doctors choose the best reconstruction method for children with bone tumors.
What could go wrong
This is a review of past medical records, not a new treatment test. Results may not apply to newer surgical methods or all patients.

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.

Participants

91 people

The number who actually took part.

Started

May 2024

Finished

Nov 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.

Who is studied

Historical cohort of all patients treated for a malignant bone tumor of the lower limb between 1986 and 2017 in the AP-HP Necker-Enfants Malades or Armand Trousseau hospitals, part of the oncological follow-up of which was possibly carried out at the Institut Gustave Roussy or the Institut Curie.

Ages

Up to 17 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 under 18 years old with a malignant bone tumor of the lower limb (femur or tibia), diaphyseal or metaphyseal-diaphyseal * Patients operated between 1986 and 2017 for a diaphyseal resection of the tumor with biological reconstruction using either Induced Membrane, Vascularized Fibula and Vascularized Fibula associated with an Allograft * Patient with a minimum follow-up of 5 years Exclusion Criteria: * Patient who died within 5 years or who had a follow-up of less than 5 years following the reconstruction procedure * Patient with joint damage * Patient over 18 years old at the time of surgery * Patient who had an isolated reconstruction of the fibula * Opposition of adult patients/holders of parental authority of minor patients to whom the study information note was sent, to the use of the patient's medical data for the study

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Conditions

The condition(s) this trial relates to.

childhood malignant neoplasm Ewing sarcoma neoplasm osteosarcoma

As listed by the trial registrant

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

Childhood malignant tumors of lower limbs

Contacts and locations

Locations

  • Hôpital Armand-Trousseau

    Paris, 75012, France

  • Hôpital Necker-Enfants Malades

    Paris, 75015, France

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