Clinical trial Recruiting at 1 site Observational Ages 18 and up

Comparing two knee implant systems for patient satisfaction after surgery

Official title: A Post-market Observational ORIGIN® vs. VANGUARD® PS Clinical Study: a Comparative, Prospective, Randomized Controlled Clinical and Radiological Evaluation.

Run by Symbios Orthopedie SA · NCT04728542 · Data updated 2026-11-12

This study is testing which of two knee implant systems, ORIGIN® or VANGUARD® PS, makes patients happier after knee surgery.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment140 (estimated)
SponsorSymbios Orthopedie SA
Industry-sponsored
Locations1 site (Mainz)
StatusRecruiting
StartedMarch 25, 2021
Main results expectedFebruary 2025
Study endsFebruary 2027
Registry record updatedOctober 4, 2024
Trial IDNCT04728542 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals scheduled for total knee arthroplasty who meet the inclusion criteria.

Probably not a fit

Patients who are not undergoing knee arthroplasty or do not meet the eligibility criteria may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to evaluate patient satisfaction following total knee arthroplasty using two different implant systems: the patient-matched ORIGIN® and the off-the-shelf VANGUARD® PS. It involves a prospective, comparative design with 140 subjects and includes a two-year follow-up to assess clinical and device performance outcomes. The study is conducted in a single center, focusing on real-world hospital practices and patient experiences.

Why it matters

Potential benefit: If successful, this study could lead to improved patient satisfaction and outcomes in knee replacement surgeries.

How similar studies have gone: Other studies have shown success in comparing different knee implant systems, indicating that this approach is supported by prior research.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion/exclusion criteria

Where it's running

  • University Medical Center of Johannes Gutenberg-University Mainz
    Mainz, Germany
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Evaluating outcomes after shoulder replacement surgery

    This study looks at how well the PRIMA shoulder implant works and how patients feel after having shoulder replacement surgery over the first two years.

    Recruiting Limacorporate S.p.a · Cattolica, Rimini · NCT06371833

  • Autologous adipose-derived stem cell injections for knee osteoarthritis

    We’re testing whether injecting a patient’s own fat-derived stem cells into the knee can help people with knee OA feel less pain and move better, compared with a standard hyaluronic acid treatment.

    Recruiting at 3 sites Yonsei University · Incheon and 2 other locations · NCT07901790

  • Rotating hinge vs condylar constrained knee implants in revision knee replacement

    This study tests whether rotating hinge knee implants perform similarly to condylar constrained implants when used to revise knee replacements in adults.

    Recruiting at 2 sites Medstar Health Research Institute · Washington D.C., District of Columbia and 1 other locations · NCT07818343

  • How Lipedema Affects Knee Osteoarthritis

    This study compares people with knee osteoarthritis who have lipedema to those with osteoarthritis but without lipedema to see if lipedema changes knee pain and structure.

    Recruiting Izmir Democracy University · Izmir, İzmir and 1 other locations · NCT07575555

  • Cryoneurolysis before total knee replacement surgery

    This trial will test whether freezing the genicular nerves at least 24 hours before total knee replacement reduces long-term pain and improves recovery for adults having primary TKA for osteoarthritis.

    Recruiting Attikon Hospital · Athens · NCT07425457

  • Registry for hip and knee joint implants and revisions

    This study collects information from patients who have had hip or knee joint replacements to see how well the implants work over time and to improve future surgeries.

    Recruiting University Hospital Heidelberg · Heidelberg, Baden-Wurttemberg · NCT06850818

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.