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Which dose of anesthesia gets you home soonest after knee surgery?

NCT ID NCT06703580

Symptom relief Sponsor: Cairo University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 150 adults having knee arthroscopy to see which dose of a short-acting spinal anesthetic (prilocaine) allows patients to urinate and go home fastest. Participants received one of three doses (40, 50, or 60 mg). The goal is to improve day-surgery recovery by reducing time to first void and other side effects.

What this could mean

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

Active substance
prilocaine
What this could lead to
If successful, this could help patients recover bladder function faster after knee surgery, allowing earlier discharge from the hospital.
What could go wrong
This is a small, completed trial focused on a short-term outcome. The results may not apply to other surgeries or patient groups.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

150 people

The number who actually took part.

Started

Nov 2024

Finished

Feb 2026

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.

Ages

18 to 60 years

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: All patients (male/female, American Society of Anesthesiologists physical status I-II, age: 18-60 years) undergoing knee arthroscopy will be eligible for the study. - Exclusion Criteria: 1. Coagulopathy and other bleeding disorders (INR more than 1.4 and platelet less than 80000) 2. Patient refusal. 3. Infection at the site of injection. 4. Allergies against prilocaine. 5. Increased intracranial pressure. 6. Severe MS and AS. 7. Sever hypovolemia.

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As listed by the trial registrant

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

Time to first void after spinal anaesthesia

Contacts and locations

Locations

  • Kasr Al Ainy Hospital , Cairo University

    Cairo, Egypt