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Kneecap breakthrough? study pits old vs new surgery

NCT ID NCT04891549

Disease control Sponsor: Rasmus Elsøe 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compared two common surgeries for fixing a broken kneecap: tension band wiring and locking plate fixation. Researchers randomly assigned 122 adults to one of the two procedures and tracked their recovery using a knee function score. The goal was to see which method leads to better long-term knee health and fewer problems.

What this could mean

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

Active substance
surgical procedure (tension band fixation or locking plate fixation)
What this could lead to
If one method proves better, it could lead to improved recovery and fewer complications for people with broken kneecaps.
What could go wrong
This is a completed trial with 122 participants, so results are limited in size. The findings may not apply to all fracture types or patients.

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

122 people

The number who actually took part.

Started

Sep 2021

Finished

Sep 2025

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 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: * Above 18 years of age * Patella fracture suitable for surgically treatment, with both surgical methods * AO classification 34-B, 34-C Exclusion Criteria: * Open patella fracture above Gustillo grade 2 * Bilateral patella fracture * Total knee replacement in the affected extremity * Other fractures of the affected extremity within the previous 12 months. * Other reasons for exclusion (unable to understand Danish, mentally unable to participate, etc). * Prior ipsilateral patella fracture

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Conditions

The condition(s) this trial relates to.

musculoskeletal system disorder Patella Fracture

As listed by the trial registrant

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

Orthopedic disorder Patella fracture Surgery

Contacts and locations

Locations

  • Aalborg University Hospital

    Aalborg, 9000, Denmark

  • Aarhus University Hospital

    Aarhus, 8200, Denmark

  • Regional Hospital Hjoerring

    Hjørring, 9800, Denmark

  • Regional Hospital Kolding

    Kolding, 6000, Denmark

  • Regional Hospital Randers

    Randers, 8930, Denmark

  • Regional Hospital Viborg

    Viborg, 8800, Denmark

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