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Knee surgery showdown: which fix works best for bowlegs?

NCT ID NCT07220434

Disease control Sponsor: Muhammed Cagatay Engin 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two surgical techniques to realign the knee in people with early arthritis and bowleg deformity. Twenty-eight adults will be randomly assigned to receive either a plate and screws or an external fixator to stabilize the bone after it is cut and repositioned. Researchers will track how well the knee alignment is corrected, pain levels, and knee function over one year.

What this could mean

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

Active substance
Surgical procedure (medial opening wedge high tibial osteotomy with either plate fixation or external fixator)
What this could lead to
If successful, this could show which surgical method provides better knee alignment and pain relief for patients with early knee arthritis and bowleg deformity.
What could go wrong
This is a small, early-stage trial with only 28 participants, so results may not apply to everyone. Both surgeries carry risks like infection, nerve injury, or incomplete healing.

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 28 people

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

Expected to start

Nov 2025

An estimate. Start dates often move.

Expected to finish

Dec 2028

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: * Varus malalignment associated with medial compartment degeneration/osteoarthritis. Indication for Medial Opening Wedge HTO. Aged 18 years or older. Willing to participate in the study and provide written informed consent. Exclusion Criteria: * Advanced-stage osteoarthritis (Indication for Total Knee Arthroplasty). Previous open knee surgery on the same extremity. Inability to comply with follow-up appointments. Significant comorbidities (e.g., uncontrolled diabetes, rheumatoid arthritis).

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Conditions

The condition(s) this trial relates to.

Genu Varum osteoarthritis osteoarthritis, knee

As listed by the trial registrant

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

Genu varum High tibial osteotomy Medial compartment osteoarthritis Varus deformity

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

  • Ataturk University, Department of Orthopedics and Traumatology

    Erzurum, Erzurum, 25240, Turkey (Türkiye)

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