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ACL surgery showdown: does leaving muscle on the graft help it heal better?

NCT ID NCT07404046

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

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study looks at whether keeping some muscle fibers on the tendon used to repair a torn ACL helps the graft heal and remodel inside the knee. About 40 patients will be randomly assigned to get either a standard tendon graft or a muscle-tendon graft. Researchers will use MRI scans at 6 weeks, 6 months, and 12 months after surgery to compare how well the graft integrates with the bone and matures.

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 40 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Sep 2027

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 to 50 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: * Clinically and radiologically confirmed anterior cruciate ligament (ACL) rupture. * Age between 18 and 50 years. * Intact posterior cruciate ligament and collateral ligaments. * Signed informed consent to participate in the study. * Patients meeting at least one indication for concomitant lateral tenodesis, including: age under 25 years, positive pivot-shift test, presence of Segond fracture, participation in sports with frequent changes of direction and rotational knee loads, or joint hypermobility (Beighton score ≥ 7). Exclusion Criteria: * Previous ACL reconstruction of the same knee. * Inability to use a graft prepared by quadruple folding of the semitendinosus tendon. * Graft diameter \< 7.5 mm. * MRI-confirmed unsuccessful meniscal healing after repair. * Acute joint infection or history of joint infection.

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As listed by the trial registrant

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

Cruciate ligament reconstruction

How to take part

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  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

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Contacts and locations

Locations

  • University hospital Dubrava

    RECRUITING

    Zagreb, 10000, Croatia

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