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CT scans could make knee replacements last longer in Bow-Legged patients

NCT ID NCT07465484

Knowledge-focused Sponsor: I.M. Sechenov First Moscow State Medical University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study aims to improve total knee replacement surgery for people with severe knee arthritis and a bow-legged (varus) deformity. Researchers will use advanced CT scans to compare the angle of the affected leg with the healthy leg, helping surgeons decide how much to correct the alignment. The goal is to develop a personalized approach that leads to better implant positioning and long-term function. The study will enroll 300 adults with advanced knee osteoarthritis and follow them for 12 months after surgery.

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 300 people

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

Started

Sep 2024

Expected to finish

Aug 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 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: 1. Patients over 18 years of age with grade 3-4 knee osteoarthritis (according to Kellgren-Lawrence) and pain score of 5 or higher on a 10-point VAS scale. 2. Varus deformity of the lower limb (HKA angle \<177°, or varus \>3°) 3. Anesthesia risk according to the ASA scale of no more than III. 4. BMI less than 35 kg/m2. 5. Patient must be monitored throughout the entire study period (12 months). 6. Patient must be mentally competent and compliant. 7. Patient must provide written informed consent to participate in the study. Exclusion Criteria: 1. Body mass index \> 40 kg/m². 2. Instability of the collateral ligaments of the knee joint requiring the installation of ligamentous systems, presence of primary severe bone defects. 3. Impaired weight-bearing ability of the contralateral limb. 4. Presence of metal implants or foreign bodies in the lower extremities. 5. Previous knee interventions, such as reconstruction of the knee ligament apparatus, or corrective osteotomies of the femur and tibia. 6. Patient refusal to participate in the study. 7. Patient failure to comply with the recommendations of the treating physician or the prescribed regimen.

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee

As listed by the trial registrant

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

Knee osteoarthritis Knee osteoarthritis in varus

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    1 site. The list below names each one and where it is.

  3. 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 ↗

  4. 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

  • University clinical hospital №1 I.M.Sechenov First Moscow State Medical University. The Department of Traumatology, Orthopedics and Disaster Surgery

    RECRUITING

    Moscow, 119991, Russia

    Contact Email: •••••@•••••

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