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Knee implant designed for natural movement tested over a decade

NCT ID NCT03677518

Knowledge-focused Sponsor: Centre Hospitalier Universitaire, Amiens 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how well a special knee implant called the Medial-Pivot knee works over the long term. Researchers measured knee bending and checked implant survival about 10 years after surgery in 71 patients. The goal was to see if the implant helps achieve at least 120 degrees of knee flexion.

What this could mean

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

Active substance
Medial-Pivot knee system (Advance® Medial-Pivot knee implant)
What this could lead to
If successful, this could confirm that the Medial-Pivot knee design provides lasting flexibility and durability for knee replacement patients.
What could go wrong
This is a small, single-center retrospective study without a comparison group, so results may not apply to all patients or implant types.

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

71 people

The number who actually took part.

Started

Jan 2017

Finished

Oct 2017

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.

Who is studied

The patients were operated by four experienced surgeons usingthe same protocol. A mid-line skin incision was made in all patientsexcept one who had previously undergone a lateral osteotomy. The parapatellar arthrotomy was medial in all cases. Independent tibialand femoral cuts were made with an intramedullary femoral aim-ing device targeting 7◦valgus in 48 cases and 5◦in 2 cases. Femoral component external rotation of 3◦relative to the posterior condy-lar plane was applied in all patients. All implants were fixed usingPalacos®bone cement with gentamicin (Haeraus, Warsaw, USA).The patella was resurfaced in 40 knees.

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: * patients \> 18 years * patienst must be operated * patient with mid-line skin incision Exclusion Criteria: * patients \< 18 years

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As listed by the trial registrant

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

Arthroplasty complications

Contacts and locations

Locations

  • CHU Amiens-Picardie

    Amiens, 80054, France

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