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New hip cup design aims to stop common complication in elderly fracture patients

NCT ID NCT03909815

Disease control Sponsor: Uppsala 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested whether a special type of hip implant (dual mobility cup) can prevent the hip from popping out of place after a total hip replacement for a broken hip. The trial involved 1,600 elderly patients with a specific type of hip fracture. Researchers compared the dual mobility cup to standard cups to see which one led to fewer dislocations within one year after surgery.

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

1,600 people

The number who actually took part.

Started

Jan 2020

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

65 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: * Written informed consent * Diagnosis: displaced femoral neck fracture type AO 31-B2 or B3/Garden type 3 or 4 * Eligible for THA according to local guidelines and routines Exclusion Criteria: * Previous inclusion of contralateral hip * Delayed fracture surgery (date of injury \>7 days prior to date of randomization) * Pathological or stress fracture of the femoral neck, or fracture adjacent to a previous ipsilateral hip implant * Inability or unwillingness to give written consent * Dementia (as diagnosed by the screening physician) * Unavailability of both interventions for a study subject (e.g., implants being out of stock, or lack of the individual surgeon's expertise to perform either procedure)

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Conditions

The condition(s) this trial relates to.

femoral neck fracture Joint Dislocations

As listed by the trial registrant

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

Femoral neck fractures

Contacts and locations

Locations

  • Nils Hailer

    Uppsala, 75185, Sweden

  • Queen Mary University of London

    London, United Kingdom

More trials for these conditions

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