45,000 hip and knee replacements analyzed to improve day-surgery success
NCT ID NCT05613439
First seen Jul 09, 2026 · Last updated Jul 10, 2026 · Updated 1 time
Summary
This registry study collects detailed information from 45,000 adults undergoing fast-track hip or knee replacement at eight Danish hospitals. Researchers track patient health before surgery and complications afterward, including hospital stays, readmissions, and deaths within 90 days. The goal is to identify which patients can safely have surgery as a day procedure and to develop a tool that flags high-risk individuals.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this registry could help identify which patients are best suited for day-surgery and reduce complications after hip and knee replacements.
- What could go wrong
- This is an observational registry, not a controlled trial, so it cannot prove cause and effect. Results may not apply outside the Danish healthcare system.
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
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45,000 people
The number who actually took part.
- Started
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Sep 2022
- Finished
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Dec 2025
- 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.
Who is studied
The participating dedicated arthroplasty departments are placed in either large university or regional hospitals. The departments cover all five healthcare regions in Denmark and are estimated to contribute with about 40% of the annual hip and knee replacements in Denmark. Thus, the population is representative of the general Danish arthroplasty population.
- Ages
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18 years and older
- Sex
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Anyone
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: * age \>18 years * non-malignant surgery * danish social security number * elective procedure Exclusion Criteria: * unwilling 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.
Contacts and locations
Locations
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Aalborg University Hospital, Farsø
Farsø, Region of Northern Judland, 9640, Denmark
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Bispebjerg University Hospital
Copenhagen, Capital Region, Denmark
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Gentofte University Hospital
Gentofte Municipality, Capital Region, Denmark
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Gødstrup Hospital
Herning, Region of Middle Judland, Denmark
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Hvidovre Hospital
Hvidovre, Capital Region, 2650, Denmark
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Lillebaelt Hospital, Vejle
Vejle, Region of Sourthern Denmark, 7100, Denmark
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Næstved Hospital
Næstved, Region Sjælland, Denmark
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University Hospital Svendborg
Svendborg, Region Syddanmark, Denmark
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