- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01859130
Zimmer POLAR - Total Knee Arthroplasty (TKA)
Persona Outcomes Led Assessment Research in Total Knee Arthroplasty
Study Overview
Status
Intervention / Treatment
Detailed Description
The study design is a prospective, multicenter, study of the commercially available Persona fixed bearing knee implants. The study will require each site to obtain Institutional Review Board (IRB) approval prior to study enrollment. All potential study subjects will be required to participate in the Informed Consent Process.
All study subjects will undergo preoperative clinical evaluations prior to their total knee arthroplasty. The post-operative clinical and radiographic evaluations will be conducted at 6 weeks, 6 months, 1 year, 2, 3, 4, and 5 years.
All info specified in the Brief Summary will be captured via the Knee Society Score, EQ-5D, Forgotten Joint Score, KSS Patient Expectations, Physical Exam, and Physician's Assessment of Radiographic Outcomes form.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Illinois
-
Naperville, Illinois, United States, 60563
- Midwest Orthopaedics at Rush
-
-
New Jersey
-
Egg Harbor Township, New Jersey, United States, 08234
- The Rothman Institute
-
-
North Carolina
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Durham, North Carolina, United States, 27701
- Duke University
-
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19107
- The Rothman Institute
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- 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 has participated in a study-related Informed Consent process;
- 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 Persona fixed bearing knee components implanted in accordance with product labeling.
Exclusion Criteria:
- 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;
- Insufficient bone stock on femoral or tibial surfaces;
- Skeletal immaturity;
- Neuropathic arthropathy;
- Osteoporosis or any loss of musculature or neuromuscular disease that compromises the affected limb;
- Stable, painless arthrodesis in a satisfactory functional position;
- Severe instability secondary to the absence of collateral ligament integrity;
- 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;
- Patient is pregnant or considered a member of a protected population (e.g., prisoner, mentally incompetent, etc.);
- Patient has previously received partial or total knee arthroplasty for the ipsilateral knee.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Persona TKA
Primary total knee arthroplasty subjects that receive the Zimmer Persona Total Knee System
|
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Knee Society Scores
Time Frame: 5 years post op
|
This form includes alignment, instability, joint range of motion, and symptoms.
The overall range of scores available is -8 to 106.
A higher score indicates good alignment, range of motion, and minimal symptoms of pain.
A lower score indicates poor knee alignment, potential issues in range of motion, and the likely experience of symptoms of pain.
|
5 years post op
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
EQ-5D
Time Frame: 5 years post op
|
The EQ-5D family of instruments has been developed to evaluate health across a wide range of disease areas.
Each EQ-5D instrument comprises a short descriptive system questionnaire and a visual analogue scale (EQ VAS).
The questionnaire provides a simple descriptive profile of a respondent's health state.
The EQ VAS provides an alternative way to elicit an individual's rating of the individual's own overall current health.
The overall range is -0.1 to 1.0.
A higher score indicates a better overall health rating reported by the patient, and a lower score indicates a poor overall health rating.
It is possible to score a negative value.
Although unlikely, a negative value is observed to be a state worse than death.
|
5 years post op
|
Forgotten Joint Score (FJS)
Time Frame: 5 years post-op
|
The Forgotten Joint Score-12 (FJS-12) is a validated patient-reported outcome measure (PROM) tool designed to assess artificial prosthesis awareness during daily activities following total knee arthroplasty (TKA).
Scores range from 0-100.
A score of 100 would indicate a high degree of "forgetting" the artificial joint (a low degree of awareness).
A score of 0 would indicates a very low degree of "forgetting" the artificial joint (typically aware of the replacement).
|
5 years post-op
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Kacy Arnold, RN MBA, Zimmer Biomet
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CSU2012-10K
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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