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New study aims to ease pain after knee replacement without affecting movement
NCT ID NCT07080892
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests two different methods of a nerve block (iPACK) to manage pain after total knee replacement. The goal is to find which approach provides better pain relief and reduces the need for strong painkillers. 120 adults having knee replacement will be randomly assigned to one of the two block techniques. The results could help improve recovery and comfort after surgery.
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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Feb 2025
- Expected to finish
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May 2027
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 80 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: * Age between 18 and 80 years * Patients undergoing primary unilateral total knee arthroplasty (TKA) for osteoarthritis * Ability to understand and sign informed consent * American Society of Anesthesiologists (ASA) classification I-III * Ability to cooperate and participate in postoperative pain assessments (e.g., VAS) Exclusion Criteria: * Refusal to participate or failure to sign informed consent * Bilateral or revision TKA * Partial or unicondylar knee replacement * Severe knee deformity (flexion, varus, or valgus \>30°) * Diagnosis other than osteoarthritis (e.g., rheumatoid arthritis, septic arthritis, post-traumatic arthritis) * Allergy to local anesthetics or any medications used in the study * Contraindications to regional anesthesia (e.g., infection at the injection site, coagulopathy, therapeutic anticoagulation) * BMI \> 40 kg/m² * Severe renal impairment (KDIGO stage G4 or higher) or liver failure (Child-Pugh score ≥ 10) * Prior surgery or vascular procedure on the femoral vessels of the operated limb * Language barrier or inability to assess pain using the VAS * Planned outpatient (same-day discharge) procedure
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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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1st Department of Anaesthesiology and Intensive Care Medicine
RECRUITINGBratislava, 82101, Slovakia
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Other studies related to the condition(s) this trial covers.
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- Steroid cocktail may offer better pain control after knee replacement
- Can a steroid cocktail beat the standard nerve block for knee replacement pain?