Knee replacement patients: which pain block lasts longer?
NCT ID NCT07097493
First seen Jun 27, 2026 · Last updated Aug 26, 2026 · Updated 2 times
Summary
This study compares two types of pain-relieving injections for people having knee replacement surgery. One uses a long-acting drug called liposomal bupivacaine, and the other uses a mix of five different medications. The goal is to see which approach provides better pain control after surgery. About 90 adults will take part.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 90 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2027
An estimate. Start dates often move.
- Expected to finish
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Jun 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 years and older
- 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: * 18-80 years of age * Receiving primary total knee arthroplasty * Patients receiving a spinal anesthetic with ropivacaine and fentanyl * American Society of Anesthesiology (ASA) category 1 to 3 Exclusion Criteria: * Revision of Total Knee Arthroplasty * Opioid use in the prior 6 months \> 40 mg oxycodone equivalents per day or long-acting opioids as determined by the Prescription Drug Monitoring Program (PDMP) * Patients planned to receive general anesthesia * Patients planned to receive a spinal other than ropivacaine * History of peripheral neuropathy * Poorly controlled diabetes (Hgb A1C \>8) * Allergies or contraindications to study medications: acetaminophen, celecoxib (including sulfa), methocarbamol, midazolam, fentanyl, bupivacaine, dexamethasone, acetaminophen, buprenorphine, NSAIDs, clonidine, epinephrine, and liposomal bupivacaine. * Unable to provide informed consent
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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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Atrium Health Wake Forest Baptist
Winston-Salem, North Carolina, 27157, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a robot make a new knee feel like your own?
- A Non-Opioid painkiller may cut opioid use after knee surgery
- Knee replacement patients may skip hospital visits with remote monitoring
- Knee replacement patients may get faster recovery with continuous nerve block
- New CT scan could spot loose knee implants sooner
- Why do some patients still hurt after joint replacement?