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Which nerve block eases knee surgery pain better?

NCT ID NCT07790393

Symptom relief Sponsor: Istanbul Medipol University Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 27, 2026 · Last updated Aug 28, 2026 · Updated 1 time

Summary

This trial compares two types of nerve blocks, the adductor canal block and the parasartorial compartment block, for pain relief and recovery after arthroscopic knee surgery. Adults scheduled for elective knee surgery will be randomly assigned to receive one of the two blocks. Researchers will measure pain at rest and during movement for 48 hours after surgery, along with opioid use, muscle strength, knee movement, walking ability, side effects, and patient satisfaction. The goal is to find which block provides better pain control while preserving muscle strength and speeding up recovery.

What this could mean

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

Active substance
Adductor canal block and parasartorial compartment block, two regional nerve blocks for pain relief
What this could lead to
If one block proves better, it could become the preferred choice for knee surgery, offering improved pain control and faster recovery with less opioid use.
What could go wrong
This is a small, early-stage trial, and results may not apply to all patients. Nerve blocks carry risks like infection or nerve damage, though rare.

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 60 people

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

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

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 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Scheduled for elective unilateral primary arthroscopic knee surgery Exclusion Criteria: * Revision or bilateral arthroscopic knee surgery * Surgery performed for trauma or an emergency indication * Contraindications to regional nerve block, including infection at the injection site, coagulopathy, or inappropriate anticoagulant use * Allergy to amide-type local anesthetics * Pre-existing peripheral neuropathy or motor deficit in the limb to be operated on * Dysfunction of the contralateral limb severe enough to interfere with functional assessments * Chronic opioid use * Severe cognitive impairment * Pregnancy or lactation

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative

As listed by the trial registrant

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

Postoperative pain after arthroscopic knee surgery

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

  • Medipol Mega Hastaneler Kompleksi

    Istanbul, Bagcilar, 34214, Turkey (Türkiye)