Knee replacement pain relief showdown: which numbing cocktail wins?

NCT ID NCT07509866

First seen Apr 10, 2026

Summary

This study tests three different numbing medicine combinations for pain after total knee replacement. 90 adults having knee surgery will get one of three options: a long-acting numbing drug, or a standard numbing drug plus one of two additives. The goal is to see which approach reduces the need for opioid painkillers and helps people get moving sooner.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Union Hospital, Tongji Medical College, Huazhong University of Science and Technology

    RECRUITING

    Wuhan, Hubei, 430022, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••

What this could mean

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

Active substance

Liposomal bupivacaine, ropivacaine with dexamethasone, ropivacaine with dexmedetomidine

What this could lead to

If successful, this could identify the most effective numbing approach for knee replacement surgery, leading to less pain, less opioid use, and faster recovery.

What could go wrong

This is a small, early-stage trial with only 90 participants, so results may not apply to everyone. The different numbing methods may work similarly, and unexpected side effects are possible.

Conditions

The condition(s) this trial relates to.

osteoarthritis

As listed by the trial registrant

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