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High-Tech knee surgery aims to make patients forget their joint

NCT ID NCT05863741

Symptom relief Sponsor: Medacta International SA 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether a special navigation system (NextAR) helps surgeons better balance the soft tissues during total knee replacement. The goal is to make the new knee feel more natural so patients can forget about it. About 100 adults with severe knee arthritis will be randomly assigned to receive surgery with or without this system, and their recovery will be compared.

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

About 100 people

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

Started

May 2022

Expected to finish

May 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The trial will include two groups of 50 patients in each group. This is based on a power calculation assuming a difference in Forgotten Join Score of greater than 5 points. This calculation allows for a loss to follow-up of 10%. The study will conclude once the patients involved have completed 2 years of follow-up.

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: * End-stage osteoarthritis of the knee suitable for total knee arthroplasty. * Aged over 18 years. Exclusion Criteria: * Unsuitable for TKR due to chronic infection, medical disease, inability to consent, inability to attend for post-operative follow-up, significant psychiatric issues, substance abuse issues * Previous reconstructive/fracture/arthroplasty surgery on affected knee * Active inflammation arthropathy * Significant extra articular deformity * Morbidly Obese (BMI \>40) * Pregnant women

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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.

Total knee arthroplasty

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

  • Fremantle Hospital

    RECRUITING

    Fremantle, Australia

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