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Warm air blanket may reduce shivering after knee surgery

NCT ID NCT07613203

Symptom relief Sponsor: Shanghai 6th People's Hospital 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
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jul 15, 2026 · Updated 3 times

Summary

This study looked at whether using a forced-air warming blanket during knee replacement surgery helps prevent hypothermia (low body temperature) and related problems like shivering. Researchers compared 240 patients who either got the warming blanket or standard care. The goal was to see if the device keeps patients warmer and improves recovery.

What this could mean

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

Active substance
Forced-air warming device
What this could lead to
If effective, forced-air warming could become a standard practice to prevent hypothermia and improve recovery after knee replacement surgery.
What could go wrong
This is a completed historical control study, not a randomized trial, so results may be less reliable. The intervention is a device, not a drug, so benefits are limited to warming and may not affect major outcomes.

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

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

240 people

The number who actually took part.

Started

May 2018

Finished

Jan 2019

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

60 to 85 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: * Age between 60 and 85 years * ASA physical status I or II * Diagnosed with knee osteoarthritis * Undergoing first unilateral primary total knee arthroplasty * Able to provide written informed consent

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee

As listed by the trial registrant

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

Perioperative hypothermia Total knee arthroplasty

Contacts and locations

Locations

  • Shanghai 6th People's Hospital

    Shanghai, Shanghai Municipality, 200233, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.