WithdrawnNot Applicable

Bilateral Total Knee Arthroplasty vs Unicompartment Arthroplasty Retrospective and Clinical Outcome Study

Stopped: Alternate Research Pursued

United States0Started 2016-02

Plain-language summary

To determine if there is a patient satisfaction preference of Total Knee Arthroplasty (TKA) vs Unicompartmental Knee Arthroplasty (UKA) in patients with bilateral knee osteoarthritis who underwent a primary TKA one side and a primary UKA on the opposite side and are at a minimum of two years post-surgery. Patient reported outcomes and data with be analyzed along with all retrospective chart data.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Must be able to read, understand and provide written informed consent on the Institutional Review Board (IRB) approved Informed Consent Form (ICF)
. Ability to understand and provide written authorization for use and disclosure of personal health information
. Subject who are able and willing to comply with the study protocol and follow-up visit
. Must be 18 years or older to participate
. Subjects must have a clinically documented osteoarthritis in both knees, single or multiple compartments
. Subjects must have undergone a primary TKA and primary UKA in the contralateral knee
. Must be a minimum 2 year (24 months) post-surgery on each knee

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

To evaluate patient preference of Total Knee Arthroplasty (TKA) vs Unicompartmental Knee Arthroplasty (UKA)

Timeframe: Minimum 2 years post surgery

Trial details

NCT IDNCT02583113

SponsorMedacta USA

Sponsor typeINDUSTRY

Study typeOBSERVATIONAL

Primary completion2026-12-01

View on ClinicalTrials.gov More Osteoarthritis trials

Plain-language summary

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Must be able to read, understand and provide written informed consent on the Institutional Review Board (IRB) approved Informed Consent Form (ICF)
. Ability to understand and provide written authorization for use and disclosure of personal health information
. Subject who are able and willing to comply with the study protocol and follow-up visit
. Must be 18 years or older to participate
. Subjects must have a clinically documented osteoarthritis in both knees, single or multiple compartments
. Subjects must have undergone a primary TKA and primary UKA in the contralateral knee
. Must be a minimum 2 year (24 months) post-surgery on each knee

Bilateral Total Knee Arthroplasty vs Unicompartment Arthroplasty Retrospective and Clinical Outcome Study

Plain-language summary

Who can participate

Inclusion criteria

Questions worth asking your doctor

Questions for the trial coordinator

What they're measuring

Trial details

Bilateral Total Knee Arthroplasty vs Unicompartment Arthroplasty Retrospective and Clinical Outcome Study

Plain-language summary

Who can participate

Inclusion criteria

Questions worth asking your doctor

Questions for the trial coordinator

What they're measuring

Trial details

Exclusion criteria