Comparing two knee implant systems for patient satisfaction after surgery

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

Observational Symbios Orthopedie SA · NCT04728542

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

Quick facts

Study typeObservational
Enrollment140 (estimated)
Ages18 Years and up
SexAll
SponsorSymbios Orthopedie SA Industry-sponsored
Locations1 site (Mainz)
Trial IDNCT04728542 on ClinicalTrials.gov

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.

Who should consider this trial

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

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

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

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion/exclusion criteria

Where this trial is running

Mainz

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions ArthroplastyReplacementKneeProsthesis
Last reviewed 2026-06-15 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.