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Smart implant tracks knee replacement recovery to find best surgical approach

NCT ID NCT07348835

Knowledge-focused Sponsor: Total Joint Specialists 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study will use a smart knee implant (Persona IQ®) to continuously track movement after total knee replacement surgery. Researchers want to compare two surgical approaches (medial parapatellar vs. subvastus) to see which leads to better early recovery. About 110 adults getting a primary knee replacement will participate, and their step counts, walking speed, and range of motion will be monitored for up to 6 months. The goal is to understand recovery patterns and identify if one approach is better.

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 110 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Jan 2027

An estimate. End dates often move.

Lead sponsor

A research network

The lead sponsor is a research network or cooperative group.

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: * All patients older than 18 years of age who plan to undergo medial congruent polyethylene bearing primary TKA with a PIQ * Eligible for both approaches * Have an iPhone and willing to "wear" it for two weeks preoperatively to get an estimated average stepcount * Provide informed consent * Willing to complete follow ups Exclusion Criteria: * Patients with TKA revisions * Patients with insufficient pre-operative range of motion in the operative knee (flexion contracture of \> 20 degrees or \< 90° of knee flexion) * Patients with Contralateral TKA within study time frame * Patients with TKA other than medial congruent polyethylene bearing * Patients with bilateral surgery * Patients without a valid and active email address * Patients not willing or able to participate in study and follow-ups * Patients who use assisted devices to ambulate * Rheumatoid arthritis

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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.

Total knee anthroplasty

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

  • Total Joint Surgery Center Atlanta

    Sandy Springs, Georgia, 30328, United States

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