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Robots vs. surgeons: which knee replacement is more precise?

NCT ID NCT03469193

Disease control Sponsor: Hospices Civils de Lyon 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compared two ways to perform partial knee replacement for osteoarthritis: using a robotic system (Navio) versus traditional manual tools. 66 adults with knee osteoarthritis took part. The goal was to see if robotic assistance leads to better leg alignment and implant placement. Results may help improve long-term function and implant survival.

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

66 people

The number who actually took part.

Started

Apr 2018

Finished

Jan 2022

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: * Male or female adult (age ≥ 18 years) * Diagnosis of unicompartmental knee osteoarthritis ( osteoarthritis internal femoral tibial (AFTI)) * Indication of unicompartmental knee arthroplasty of first intention posed Exclusion Criteria: * History of femoral or tibial osteotomy of valgization or varisation * Reconstruction of the associated cruciate ligament * Refusal to participate in the study * Pregnant women, parturient or nursing mothers * Persons deprived of their liberty by a judicial decision or administrative staff, persons under psychiatric care, persons admitted to a health or social institution to other purposes. * Major persons subject to a legal protection measure or unable to express their consent * Patient not affiliated to a social security scheme * Patient participating in another interventional research excluding routine care research (former regulation) and category 2 searches not interfering with criterion analysis main

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Conditions

The condition(s) this trial relates to.

osteoarthritis susceptibility 6 osteoarthritis, knee

As listed by the trial registrant

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

Osteoarthritis of knee

Contacts and locations

Locations

  • Hopital de la Croix Rousse

    Lyon, 69004, France

More trials for these conditions

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