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Knee replacement recovery: which pain catheter saves leg strength?

NCT ID NCT02873637

Symptom relief Sponsor: Centre Hospitalier Departemental Vendee 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested two types of pain-relief catheters after total knee replacement surgery. One catheter is placed under the sartorial muscle, the other near the femoral nerve. The goal was to see which one better preserves quadriceps muscle strength, helping patients recover faster. Forty-four adults undergoing knee replacement were randomly assigned to one of the two catheters.

What this could mean

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

Active substance
perineural catheter (device)
What this could lead to
If successful, this could help patients recover leg strength faster after knee replacement surgery.
What could go wrong
This is a small, completed study with only 44 participants, so results may not apply to everyone. The benefit may be small or not clinically meaningful.

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

44 people

The number who actually took part.

Started

Jan 2017

Finished

Nov 2018

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 85 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: * Major Patient (≥ 18 years) * Before tricompartmental benefit from knee replacement (TKR) unilateral, * TKR programmed on one of the first three days of the week (Monday to Wednesday) * Physical status score I-III, * Non septic programmed surgery under general anesthesia * Able to understand the protocol * Written informed consent * Social Insured * Opportunity to be followed under the Protocol Exclusion Criteria: * Age ≥ 85 years * Obesity (BMI ≥ 35) * Revision TKR, * Patients not cooperating or not including the French, * Difficulties in understanding and evaluating the score pain (VAS), * Preoperative cognitive dysfunction making unreliable interrogation * Patient unable to read and / or write (literacy, ...) * Known bleeding disorders, * Vascular surgery for femoral vessels on the operated side, * Neuropathy of the lower limb, * Localized infection at the puncture catheters, * Known allergy to ropivacaine, * Renal and / or severe hepatic impairment, * Taking opioids for more than a month before surgery, * Intolerance to morphine, * Rheumatic inflammatory disease, * Patients receiving immunosuppressive therapy or long-term corticosteroid * Allergy or against-indications to standard treatments administered intraoperative and postoperative * Flexion deformity\> 10 ° or valgus deformity with significant * Refused to participate * Patient trusteeship, guardianship, deprived of liberty * Women premenopausal who become pregnant

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As listed by the trial registrant

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

Total knee replacement

Contacts and locations

Locations

  • CHD Vendée de la Roche sur Yon

    La Roche-sur-Yon, 85925, France

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