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Simple knee device may speed up recovery after joint replacement

NCT ID NCT05678231

Symptom relief Sponsor: Prisma Health-Midlands 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 18, 2026 · Updated 1 time

Summary

This study tests whether a disposable device called the Zero Degree Knee positioner helps people regain full knee extension faster after total knee replacement surgery. About 154 adults aged 40-80 with knee osteoarthritis will be randomly assigned to use the device at home or follow standard recovery instructions. The main goal is to measure knee straightness at 2 weeks after surgery and track patient-reported outcomes over time.

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 154 people

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

Started

Feb 2023

Expected to finish

Dec 2026

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

40 to 80 years

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: * Men and women between the ages of 40-80 years * Candidate for total knee arthroplasty * Diagnosis of mild to advanced osteoarthritis * The ability to walk independently at baseline Exclusion Criteria: * History of knee replacement in operative limb (i.e. patients undergoing revision surgery) * Neuromuscular/skeletal or connective tissue conditions that can alter gait or joint mechanics (joint infection, gout, rheumatoid arthritis) * Pregnant women * Prisoners * Non-English speakers

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Conditions

The condition(s) this trial relates to.

osteoarthritis 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

  • Prisma Health - Midlands

    Columbia, South Carolina, 29203, United States

More trials for these conditions

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