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Hip implant safety check: MRI scans reveal hidden tissue reactions

NCT ID NCT01750606

Knowledge-focused Sponsor: Zimmer Biomet 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 people who received a specific type of metal hip replacement. Researchers used MRI scans and blood tests to check for soft tissue masses and high metal ion levels. The goal was to understand how common these issues are in patients with no symptoms compared to those with symptoms.

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

397 people

The number who actually took part.

Start date

Oct 2012

Finished

Sep 2016

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients who have received the indicated implants at one of four participating centers and who meet the sampling plan requirements.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * patient meets the sampling plan requirements Exclusion Criteria: * patient is contraindicated for MRI * patient fails to consent for the study

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As listed by the trial registrant

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

Elevated blood ion levels Tissue reaction

Contacts and locations

Locations

  • Joint Implant Surgeons

    New Albany, Ohio, 43054, United States

  • Midlands Orthopaedics

    Columbia, South Carolina, 29201, United States

  • Ortho Michigan

    Flint, Michigan, 48507, United States

  • Texas Center for Joint Replacement

    Plano, Texas, 75093, United States

  • University of Utah

    Salt Lake City, Utah, 84108, United States