New study aims to ease knee surgery pain without opioids
NCT ID NCT07130552
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests two different nerve block combinations to control pain after total knee replacement. 120 adults will receive either a popliteal plexus block or a distal IPACK block, both combined with a femoral triangle block. The goal is to see which approach reduces opioid use and improves early recovery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- bupivacaine
- What this could lead to
- If successful, this could identify a better nerve block technique to reduce pain and opioid use after knee replacement surgery.
- What could go wrong
- This is a small, early-stage study (120 people) comparing two similar techniques. The results may not apply to all patients, and there is a risk of nerve block side effects like weakness or rare allergic reactions.
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
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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
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About 120 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Patients undergoing total knee arthroplasty under spinal anesthesia * American Society of Anesthesiologists (ASA) status I-III * Patients who give informed consent Exclusion Criteria: * Patients unable to cooperate * Kidney disease with GFR \< 50 ml/min * Daily opioid consumption \> 1 month * Allergy to local anesthetics * Neurological problems of the lower extremity * Contraindications to peripheral nerve blocks
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Karaman Training and Research Hospital, Karaman, Karaman 70200
RECRUITINGKaraman, 70200, Turkey (Türkiye)
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Other studies related to the condition(s) this trial covers.
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