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Swollen knees may change how TENS works after surgery

NCT ID NCT06153277

Knowledge-focused Sponsor: Karamanoğlu Mehmetbey University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Aug 06, 2026 · Updated 2 times

Summary

This study looks at whether swelling (edema) after total knee replacement changes the way a TENS machine needs to be set. TENS is a device that uses mild electrical pulses to help with pain. Researchers will test three different TENS modes on 125 adults before and after knee surgery. The goal is to see if swollen tissue affects the electrical current needed for pain relief.

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

About 125 people

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

Started

Dec 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.

Who is studied

Patients who applied to Karaman Training and Research Hospital Orthopedics and Traumatology Polyclinic and were planned for unilateral knee arthroplasty

Ages

40 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: * Age ≥ 40 years * Patients undergoing unilateral total knee arthroplasty Exclusion Criteria: * Patients with scars in any of both knee areas * Patients who have previously had surgery on the control leg * Patients undergoing surgery due to trauma or cancer * Patients with sensory impairments * Patients with excessive effusion and edema in the knee joints before the surgery (eg. Inflammatory arthropathy, gonarthrosis exacerbation, etc.) * Mental impairment, or poor general health status that would interfere with assessments during TENS application. * Any contraindication for TENS (allergy to the TENS electrodes, skin conditions or skin sensation impairment in the areas where the electrodes will be placed, pacemaker or other implanted electrical device, epilepsy, pregnancy)

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Conditions

The condition(s) this trial relates to.

Pain

As listed by the trial registrant

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

Edema leg Pain

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

  • Karaman Training and Research Hospital

    RECRUITING

    Karaman, 70200, Turkey (Türkiye)

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