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Robotic knee surgery showdown: which alignment works best?

NCT ID NCT07533188

Symptom relief Sponsor: Singapore General Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two alignment techniques—kinematic and functional—used during robotic-assisted total knee replacement. 240 people with knee osteoarthritis will be randomly assigned to receive one of two types of implant inserts. Researchers will track how well patients forget about their new knee in daily life, aiming to find the best approach for better long-term comfort and function.

What this could mean

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

Active substance
Robotic-assisted total knee arthroplasty with different alignment techniques and implant inserts
What this could lead to
If successful, this could help surgeons choose the best alignment method and implant type to improve knee function and comfort after replacement.
What could go wrong
This is a relatively small, early-stage study comparing surgical techniques, not testing a new drug or cure. Results may not apply to all patients or guarantee better outcomes.

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 240 people

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

Started

Oct 2025

Expected to finish

Oct 2027

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:\* * Patients undergoing robotic-assisted total knee arthroplasty using the VELYS system * Diagnosis of knee osteoarthritis requiring surgical intervention * Able to provide informed consent * Willing to complete patient-reported outcome measures \*\*Exclusion Criteria:\*\* * Patients undergoing revision knee arthroplasty * Presence of active infection * Inability to comply with follow-up assessments * Severe co-morbidities that may affect surgical outcomes or participation in the study

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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.

Degenerative joint disease of the knee Knee osteoarthritis

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

  • Singapore General Hospital

    RECRUITING

    Singapore, Singapore

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