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Shock therapy for sore knees: electrostimulation tested after ACL surgery

NCT ID NCT06910150

What the study statuses mean

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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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether a single 30-minute session of electrical stimulation (TENS or needle-based) applied to the quadriceps muscle can reduce pain and improve movement, strength, and quality of life in people who recently had ACL knee surgery. 45 participants will be split into three groups: one gets standard rehab alone, the other two get standard rehab plus one type of electrostimulation. Pain and function are measured before treatment, right after, and at 1 and 7 days later.

What this could mean

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

Active substance
electrostimulation (TENS and needle-based)
What this could lead to
If it works, this could provide a simple, drug-free way to ease pain and speed recovery after ACL surgery.
What could go wrong
This is a very small, early-stage trial with only 45 people. The effect may be small or temporary, and results may not apply to everyone.

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 45 people

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

Started

Feb 2025

Expected to finish

Feb 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

18 to 55 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: * Subjects aged between 18 and 55 years, regardless of gender. * Subjects who have undergone surgical ACL reconstruction within the past six weeks, with or without additional procedures on one or both menisci due to their high concomitance, and with or without Lemaire reinforcement in the form of extra-articular lateral tenodesis. * Subjects experiencing pain in the operated knee. * Voluntary signing of the informed consent form for the study. Exclusion Criteria: * Contraindications for invasive therapies: * Subjects with chronic joint pathology. * Subjects with prostheses or osteosynthesis in the affected lower limb. * Subjects with heart disease. * Subjects with neoplasms. * Subjects with coagulopathies. * Subjects with epilepsy. * Subjects with pacemakers. * Pregnant patients. * Subjects with belonephobia (severe fear of needles). * Subjects with neuropathic pain. * Subjects with central nervous system disorders. * Subjects with a history of neurological disorders. * Subjects with a history of lumbar hernia or protrusion due to a possible involvement of the lumbar plexus. * Subjects with a history of spinal surgery. * Subjects presenting any bilateral symptoms. * Subjects with a BMI greater than 30 kg/m². * Subjects taking analgesic medication. * Subjects receiving any alternative treatment not proposed in this study, which could alter the results. * Subjects scoring above 37.5 points on the "Personal Psychological Apprehension Scale in Physiotherapy". * Contraindications for dynamometric measurement: * Subjects with acute quadriceps muscle injury. * Subjects with joint instability. * Subjects with acute joint inflammation. * Subjects who voluntarily withdraw from the study. * Subjects absent for any measurement session.

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As listed by the trial registrant

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

How to take part

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  1. The places running it

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  2. The official record

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  3. A doctor treating you

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Contacts and locations

Locations

  • Clínica CEMTRO

    Madrid, Madrid, 28035, Spain

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