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Robot-Assisted knee surgery gets a Real-Time tweak: new study tests flexibility

NCT ID NCT05966519

Disease control Sponsor: Zimmer Biomet 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 surgical robot (ROSA Knee) can help surgeons adjust their knee replacement plan during the operation based on the condition of the patient's soft tissues. About 80 adults with knee arthritis or rheumatoid arthritis will take part and be followed for 2 years. The goal is to see if the robot allows for more personalized and precise surgery, which may improve pain, movement, and quality of life.

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 80 people

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

Started

Jan 2024

Expected to finish

Jan 2029

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 study population will comprise of males and females who require primary total knee arthroplasty and satisfy the inclusion/exclusion criteria outlined in this section of the protocol. In order to avoid potential selection bias, each Investigator will offer study participation to each consecutive eligible patient presenting as a candidate for primary total knee arthroplasty using the commercially available Zimmer Biomet total knee systems. Eligible candidates who express interest in study participation will be offered Informed Consent.

Ages

20 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: * 20 years and over * Skeletally matured * Decision to have Total Knee Arthroplasty with ROSA Knee System being made independently and prior to recruitment into study * Willing and able to complete scheduled follow-up evaluations as described in the study protocol * Has participated in the informed consent process and is willing and able to sign an Institutional Review Board (IRB)/Ethics Committee (EC) approved informed consent form Exclusion Criteria: * Has serious bone defect(s), which require(s) metallic augment, synthetic bone or allograft * Is septic, has an active infection or has osteomyelitis at the affected joint * Has vascular insufficiency, muscular atrophy at the implant site or neuromuscular disease which might jeopardize the outcome of the surgery * Has any concomitant disease which is likely to jeopardize the functioning or success of the implant * Is known to be pregnant * Is a prisoner, known alcohol or drug abuser or mentally incompetent or unable to understand what participation in this study entails * Has a known sensitivity or allergy to one or more of the implanted materials

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Conditions

The condition(s) this trial relates to.

osteoarthritis susceptibility 6 osteoarthritis, knee rheumatoid arthritis

As listed by the trial registrant

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

Osteo arthritis knee Rheumatoid arthritis

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

  • Kyushu University Hospital

    RECRUITING

    Fukuoka, Fukuoka, 812-8582, Japan

More trials for these conditions

Other studies related to the condition(s) this trial covers.