NCT02337244Active, not recruiting
Zimmer POLAR Persona - TKA (EMEA Study)
Persona Outcomes Led Assessment Research in Total Knee Arthroplasty (POLAR - TKA)
Source: ClinicalTrials.gov · Last updated 25 Nov 2025
Brief summary (registry, in English)
The primary objective of this study is to obtain implant survivorship and clinical outcomes data for commercially available Persona knee implants used in primary total knee arthroplasty. The assessment will include: 1. Implant survivorship based on removal of a study device. 2. Safety based on incidence and frequency of adverse events. 3. Clinical performance measured by overall pain and function, quality of life data, radiographic parameters and survivorship.
- Status (registry)
- Active, not recruiting
- Study type
- Observational
- Enrollment
- 777 (actual)
- First submitted
- 6 Jan 2015
- Start date
- 18 Nov 2013
- Primary completion date
- Dec 2026
- Lead sponsor
- Zimmer, GmbH
- Diseases
- Rheumatoid arthritis
- NCT number
- NCT02337244
What you commit to
- Study type: Observational
- Participants enrolled: 777
- From 18 Nov 2013 to the primary completion date, Dec 2026
- 12 sites in 6 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Patient is currently participating in any other surgical intervention studies or pain management studies.
- Previous history of infection in the affected joint and/or other local/systemic infection that may affect the prosthetic joint.
- Patient has previously received partial or total knee arthroplasty for the ipsilateral knee.
Other illness
- Osteoporosis or any loss of musculature or neuromuscular disease that compromises the affected limb.
- Rheumatoid arthritis accompanied by an ulcer of the skin or a history of recurrent breakdown of the skin.
- Patient has a known or suspected sensitivity or allergy to one or more of the implant materials.
Other
- Insufficient bone stock on femoral or tibial surfaces.
- Skeletal immaturity.
- Neuropathic arthropathy.
- Stable, painless arthrodesis in a satisfactory functional position.
- Severe instability secondary to the absence of collateral ligament integrity.
- Patient is pregnant or considered a member of a protected population (e.g., prisoner, mentally incompetent, etc.).
Who the study is looking for
- Patient 18-75 years of age, inclusive.
- Patient qualifies for primary total knee arthroplasty based on physical exam and medical history, including diagnosis of severe knee pain and disability due to at least one of the following:
- rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis;
- collagen disorders and/or avascular necrosis of the femoral condyle;
- post-traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy;
- moderate valgus, varus, or flexion deformities;
- the salvage of previously failed surgical attempts that did not include partial or total knee arthroplasty of the ipsilateral knee.
- Patient is willing and able to complete scheduled study procedures and follow-up evaluations.
- Independent of study participation, patient is a candidate for commercially available Zimmer Persona knee implants implanted in accordance with product labeling.
Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers
Sites (12)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Orthopädisches Spital Speising Coordinator of this site? Confirm its status | Vienna | Austria | Unknown status |
| HEH Braunschweig Coordinator of this site? Confirm its status | Braunschweig | Germany | Unknown status |
| Atos Klinik Heidelberg Coordinator of this site? Confirm its status | Heidelberg | Germany | Unknown status |
| Hospital Parc Tauli Coordinator of this site? Confirm its status | Sabadell | Spain | Unknown status |
| Hospital Miguel Servet Coordinator of this site? Confirm its status | Zaragoza | Spain | Unknown status |
| CHU de Clermont-Ferrand Coordinator of this site? Confirm its status | Clermont-Ferrand | France | Unknown status |
| Centre Hospitalier régional Universitaire de Montpellier Coordinator of this site? Confirm its status | Montpellier | France | Unknown status |
| Golden Jubilee National Hospital Coordinator of this site? Confirm its status | Clydebank | United Kingdom | Unknown status |
| Harrogate and District NHS Coordinator of this site? Confirm its status | Harrogate | United Kingdom | Unknown status |
| University of Leeds Coordinator of this site? Confirm its status | Leeds | United Kingdom | Unknown status |
| The Newcastle Upon Tyne Hospitals Coordinator of this site? Confirm its status | Newcastle | United Kingdom | Unknown status |
| Stichting Research Orthopedie & Reinier de Graaf Groep Coordinator of this site? Confirm its status | Delft | Netherlands | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.