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OsteoarthritisNCT02912351

A Post-Market Retrospective Study on Revision Total Knee Arthroplasty Using Medacta GMK® Revision Prosthesis

An observational study of Osteoarthritis, run by Medacta USA at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a retrospective, single-site observational study, designed to assess the clinical outcomes and collect safety data of GMK Revision knee system used for primary or revision total knee arthroplasty at minimum two years post-treatment. Read more about this study

Who is it for?
Any ageHealthy volunteers can take part
Conditions the study is for
Osteoarthritis
What is being tested?
Patient record review, Radiographs, and questionaires.
How many people
24 participants
Where
1 siteUnited States
Study dates
Jan 2017to Mar 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Study population: For patients that had received the treatment modality, GMK Revision Knee System and are at least 2 years (24 months) out from surgery.

Who may be able to join

  • Patients who are willing and able to provide written informed consent for participation in the study. Written informed consent must be obtained prior to any study procedure.
  • Patients with ability to understand and provide written authorization for use and disclosure of personal health information
  • Patients must be willing to comply with the post-operative evaluation schedule.
  • Patients underwent either a primary or revision total knee replacement for any type of etiology (Osteoarthritis, Avascular necrosis, Rheumatoid Arthritis, Post-traumatic Arthritis, Polyarthritis, Primary implantation failure).
  • Patients must have received a GMK Revision component
  • Patients must be at minimum 2 year (24 months) post-treatment
  • The operation was performed or supervised by the investigator.
  • No age limit criteria

Who cannot join

  • History of alcoholism
  • Currently on chemotherapy or radiation therapy
  • Habitual use of narcotic pain medications prior to surgery or after surgery for reasons other than knee pain
  • History of a metabolic disorder affecting the skeletal system other than osteoarthritis or osteoporosis
  • History of chronic pain issues for reasons other than knee pain
  • Women that are pregnant

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Saint Alphonsus Medical Group

    Boise, Idaho, 83706

Other trials in United States

About this study

Official title: A Post-Market, Single-Center, Retrospective Study to Collect Clinical Outcomes and Safety Data From Patients Who Have Undergone Revision Total Knee Arthroplasty Using Medacta GMK® Revision Prosthesis and Are at Least 2 Years Past Surgery

This is a retrospective, single-site observational study, designed to assess the clinical outcomes and collect safety data of GMK Revision knee system used for primary or revision total knee arthroplasty at minimum two years post-treatment.

Conditions
Osteoarthritis
Being tested
Patient record review, Radiographs, and questionaires.
Keywords
Total Knee Arthroplasty, Total Knee Replacement, Revision Knee Arthroplasty
Medical subject headings
Osteoarthritis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Patient record review, Radiographs, and questionaires.Other

    KSS-Objective Knee Scores, KSS Subsets, Radiographs and Patient Satisfaction

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Total Knee Society Scores (KSS)

    Total Knee Society Score questionnaire to assess Patient satisfaction and Patient expectations and objective knee scores.

    Measured: Minimum 2 years post surgery

Secondary outcomes (3)
  1. Radiographic Analysis

    Radiographic analysis will include evaluation of component and limb alignment, evidence of component subsidence or migration and the presence and progression of radiolucent line between the prosthesis, bone and cement.

    Measured: Minimum 2 years post surgery

  2. Patient Satisfaction

    Assessed with a Likert scale questionnaire for satisfaction of treatment outcome.

    Measured: Minimum 2 years post surgery

  3. Complication Assessment

    by reviewing Adverse Events

    Measured: minimum 2 years post surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Sep 2016 (estimated)
  2. Study startJan 2017
  3. Primary completionMar 2022
  4. Study completionMar 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02912351
Sponsor's protocol ID
K102437-01
Status last verified
Mar 2022
First submitted
4 Jan 2016
Last updated
1 Apr 2022
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Osteoarthritis, run by Medacta USA at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Total Knee Society Scores (KSS) (time frame: Minimum 2 years post surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Apr 2022.

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