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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
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

Full criteria on ClinicalTrials.gov

Sites (12)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Orthopädisches Spital Speising
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ViennaAustriaUnknown status
HEH Braunschweig
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BraunschweigGermanyUnknown status
Atos Klinik Heidelberg
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HeidelbergGermanyUnknown status
Hospital Parc Tauli
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SabadellSpainUnknown status
Hospital Miguel Servet
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ZaragozaSpainUnknown status
CHU de Clermont-Ferrand
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Clermont-FerrandFranceUnknown status
Centre Hospitalier régional Universitaire de Montpellier
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MontpellierFranceUnknown status
Golden Jubilee National Hospital
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ClydebankUnited KingdomUnknown status
Harrogate and District NHS
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HarrogateUnited KingdomUnknown status
University of Leeds
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LeedsUnited KingdomUnknown status
The Newcastle Upon Tyne Hospitals
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NewcastleUnited KingdomUnknown status
Stichting Research Orthopedie & Reinier de Graaf Groep
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DelftNetherlandsUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.