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Robot vs. surgeon: which knee replacement heals quicker?

NCT ID NCT05744895

Symptom relief Sponsor: Washington University School of Medicine 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 123 people who had knee replacement surgery using the MAKO robot. Researchers tracked their pain, steps, and motion with a Fitbit and knee brace to see if robotic help leads to faster recovery compared to traditional surgery. The goal is to find out if the robot improves early outcomes like pain and movement.

What this could mean

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

Active substance
MAKO surgical robot and Triathlon knee system
What this could lead to
If successful, robotic-assisted knee replacement may lead to less pain and faster recovery than traditional surgery.
What could go wrong
This is a small, completed study comparing outcomes to a past control group, not a randomized trial. Results may not apply to all patients.

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

123 people

The number who actually took part.

Started

Sep 2021

Finished

Jun 2025

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

We propose to enroll patients that are scheduled for a MAKO Total knee arthroplasty

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: * Planning to undergo Unilateral primary total knee arthroplasty * 18 and up * Willing to sign informed consent * Willing to return for all follow-up visits * Smartphone or tablet device capable of running the Fitbit andFocusMotion platform Exclusion Criteria: * BMI \> 45 * Inflammatory arthritis * Narcotic use greater than 5 days per week * Walking aid for musculoskeletal or neurologic issue other than operative joint * Bilateral total knee arthroplasty * Patient with an active infection or suspected infection in the operative joint * The absolute and relative contraindications stated in the FDA cleared labeling for the device

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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.

Osteoarthritis, knee

Contacts and locations

Locations

  • Washington University School of Medicine

    Creve Coeur, Missouri, 63141, United States

More trials for these conditions

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