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New spinal anesthesia method could speed up recovery after joint replacement

NCT ID NCT06526156

Knowledge-focused Sponsor: University Health Network, Toronto Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at using a smaller dose of a lighter-than-normal numbing medicine (hypobaric bupivacaine) injected into the lowest space in the spine for hip or knee replacement surgery. The goal is to see if this approach still works well for pain control during surgery while helping patients regain feeling and movement in their legs faster afterward. About 55 adults having elective hip or knee replacement at Toronto Western Hospital will take part.

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.

Participants

55 people

The number who actually took part.

Started

Jul 2024

Expected to finish

Dec 2025

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.

Who is studied

Adults aged at least 20 years having inpatient elective unilateral total hip or knee arthroplasty surgery

Ages

20 years and older

Sex

Anyone

Healthy volunteers

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

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 elective unilateral total hip or knee arthroplasty under spinal anesthesia at TWH who are scheduled for inpatient overnight admission * American Society of Anesthesiologists physical status class (ASA-PS) 1-3 * At least 20 years of age Exclusion Criteria: * Refusal to participate * Inability to communicate due to language barrier or cognitive impairment * Height \> 200 cm * Weight \>120 kg * Body mass index (BMI) \>45 kg/m\^2 * Contraindication or allergy to amide-type local anesthetic * Contraindication to spinal anesthesia at the L5-S1 space (e.g., infection at the injection site, existing coagulopathy, severe spinal stenosis at higher vertebral levels) * Previous spinal surgery in the lumbosacral spine * Spinal anesthesia performed in the operating room rather than the block room * Spinal anesthesia that includes administration of intrathecal opioids (e.g., morphine, fentanyl) * Pre-existing sensory or motor impairment in the lower extremities * Inability to identify the L5-S1 space with ultrasonography

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As listed by the trial registrant

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

Anesthesia Anesthesia, local

Contacts and locations

Locations

  • Toronto Western Hospital

    Toronto, Ontario, M5T 2S8, Canada

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