Knee Kinematics for Subjects With Zimmer-Biomet Posterior Cruciate Retaining or Posterior Stabilizing Total Knee Arthroplasty
PCR PS TKA
In Vivo Determination of Knee Kinematics for Subjects Having a Zimmer-Biomet Persona PCR or PS TKA
1 other identifier
observational
50
2 countries
3
Brief Summary
25 subjects implanted with a Zimmer-Biomet Posterior Cruciate Retaining (PCR) total knee arthroplasty (TKA) and 25 subjects implanted with a Zimmer-Biomet Posterior Stabilizing (PS) TKA will be asked to perform stepping up and deep knee bend activities while under fluoroscopic surveillance (x-ray video). The movements between the two different types of TKAs will be compared.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jan 2019
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 3, 2019
CompletedFirst Submitted
Initial submission to the registry
September 23, 2019
CompletedFirst Posted
Study publicly available on registry
September 25, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 6, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
November 6, 2020
CompletedResults Posted
Study results publicly available
October 12, 2021
CompletedOctober 12, 2021
October 1, 2021
1.8 years
September 23, 2019
May 10, 2021
October 11, 2021
Conditions
Outcome Measures
Primary Outcomes (4)
Lateral Condyle Kinematic Translations - Step up
Lateral Condyle Kinematics Translations during stepping up activity. Data represents the motion of a specific part of the femur bone (in this case lateral femoral condyle) during the specified activity (in this case a step up). The kinematics (motion) is measured from the beginning of the activity to the end of the activity. Positive represents anterior motion of the femur, and negative represents posterior rollback of the femur. Data is only collected at a single time point and therefore refers to the motion of the femur bone during a specific activity at a single point in time.
Baseline
Lateral Condyle Kinematics Translations - Deep Knee Bend
Lateral Condyle Kinematics Translations during deep knee bend activity. Data represents the motion of a specific part of the femur bone (in this case lateral femoral condyle) during the specified activity (in this case a deep knee bend). The kinematics (motion) is measured from the beginning of the activity to the end of the activity. Positive represents anterior motion of the femur, and negative represents posterior rollback of the femur. Data is only collected at a single time point and therefore refers to the motion of the femur bone during a specific activity at a single point in time.
Baseline
Medial Condyle Kinematics Translations - Step Up
Medial Condyle Kinematics Translations during stepping up activity. Data represents the motion of a specific part of the femur bone (in this case medial femoral condyle) during the specified activity (in this case a step up). The kinematics (motion) is measured from the beginning of the activity to the end of the activity. Positive represents anterior motion of the femur, and negative represents posterior rollback of the femur. Data is only collected at a single time point and therefore refers to the motion of the femur bone during a specific activity at a single point in time.
Baseline
Medial Condyle Kinematics Translations - Deep Knee Bend
Medial Condyle Kinematics Translations during deep knee bend activity. Medial Condyle Kinematics Translations during stepping up activity. Data represents the motion of a specific part of the femur bone (in this case medial femoral condyle) during the specified activity (in this case a deep knee bend). The kinematics (motion) is measured from the beginning of the activity to the end of the activity. Positive represents anterior motion of the femur, and negative represents posterior rollback of the femur. Data is only collected at a single time point and therefore refers to the motion of the femur bone during a specific activity at a single point in time.
Baseline
Study Arms (2)
Subjects implanted with PCR TKA
Subjects who have been implanted with a Zimmer-Biomet Posterior Cruciate Retaining total knee arthroplasty
Subjects implanted with PS TKA
Subjects who have been implanted with a Zimmer-Biomet Posterior Stabilizing total knee arthroplasty
Interventions
Zimmer-Biomet Posterior Cruciate Retaining total knee arthroplasty
Zimmer-Biomet Posterior Stabilizing total knee arthroplasty
Eligibility Criteria
Patients implanted with a Zimmer-Biomet posterior cruciate retaining (PCR) or Zimmer-Biomet posterior stabilizing total knee arthroplasty (TKA)
You may qualify if:
- Subjects will have a Zimmer Persona PCR or PS TKA.
- Subjects must be at least six months post-operative.
- Subjects will have KSS greater than 75.
- Participants must be able to perform the required activities - stepping up and a deep knee bend.
- Subjects must be willing to sign the Informed Consent (IC) / HIPAA form to participate in the study.
- Bilateral subjects may be included in the subject population
You may not qualify if:
- Pregnant, potentially pregnant or lactating females. To satisfy radiation protocol, each female subject will be asked if she is pregnant, or possibly could be pregnant. A pregnant person will not be allowed to participate in the study. To ensure this, a pregnancy test will be administered to any female participants of child bearing age who have not had a hysterectomy.
- Subjects without the required type of knee implant.
- Subjects who are unable to perform stepping up and deep knee bend.
- Subjects who are unwilling to sign Informed Consent/HIPAA documents.
- Subjects who do not speak English and/or French
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- The University of Tennessee, Knoxvillelead
- Zimmer Biometcollaborator
Study Sites (3)
Rothman Institute
Bryn Mawr, Pennsylvania, 19010, United States
University of Tennessee
Knoxville, Tennessee, 37996, United States
The Institute for Locomotion, Aix-Marseille University, Hopital Sainte-Marguerite
Marseille, 13009, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Michael LaCour
- Organization
- University of Tennessee
Study Officials
- PRINCIPAL INVESTIGATOR
Richard Komistek, PhD
University of Tennessee
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
September 23, 2019
First Posted
September 25, 2019
Study Start
January 3, 2019
Primary Completion
November 6, 2020
Study Completion
November 6, 2020
Last Updated
October 12, 2021
Results First Posted
October 12, 2021
Record last verified: 2021-10
Data Sharing
- IPD Sharing
- Will not share
Researchers would like to retain this study data in our secure database so as to continue to add relevant, current data to our digital collection to help us work with manufacturers in the future to create better implants that last longer and will not require revision surgery. Participants will be asked if their study data may remain a part of the University of Tennessee's Center for Musculoskeletal Research data collection for use in future studies in the IC. Identifiers are automatically removed from the database upon entry into the secure server. Data shared with sponsors is de-identified.