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High-Tech GPS for your knee: new navigation system aims to improve joint replacement

NCT ID NCT05435690

Symptom relief Sponsor: GCS Ramsay Santé pour l'Enseignement et la Recherche 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is testing a new computer-assisted navigation system for total knee replacement surgery in 126 adults with knee arthritis. The system helps surgeons place the artificial joint more accurately. Researchers will measure how well patients can use their knee 3 and 12 months after surgery using standard knee scores.

What this could mean

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

Active substance
Computer-assisted navigation system (device)
What this could lead to
If successful, this navigation system could make knee replacement surgery more precise, leading to better function and faster recovery for patients.
What could go wrong
This is a small, early-stage study without a control group, so results may not prove the system is better than standard surgery. Device malfunctions or surgical complications are possible.

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 126 people

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

Started

Jan 2023

Expected to finish

May 2026

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: * Adult man or woman who has signed the informed consent for participation in the study, * Patient with primary uni or bilateral gonarthrosis * For whom an indication for total knee arthroplasty has been given Exclusion Criteria: * History of fracture, arthroplasty or osteotomy of the knee * Severe preoperative laxity warranting a constrained prosthesis * Inflammatory rheumatic disease or any other progressive concomitant condition that may impact on the patient's functional prognosis * Traumatic articular or extra-articular deformities of the lower limb * Neurological disease, after-effects of a stroke * Mental deficiency or any other reason that may hinder the understanding or the strict application of the protocol * Patient not affiliated to the French social security system * Patient under legal protection, guardianship or curatorship * Patient already included in another therapeutic study protocol or having participated in another trial in the previous three months

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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.

Gonarthrosis

Contacts and locations

Locations

  • Hôpital Privé Jean Mermoz

    Lyon, 69008, France

More trials for these conditions

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