Knee Kinematics for Subjects With Zimmer-Biomet Posterior Cruciate Retaining or Posterior Stabilizing Total Knee Arthroplasty

The University of Tennessee, Knoxville50 enrolled

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Arthroplasty, Replacement, Knee Osteoarthritis, Knee

Interventions

Zimmer-Biomet Posterior Cruciate Retaining total knee arthroplastyDEVICE

Zimmer-Biomet Posterior Cruciate Retaining total knee arthroplasty

Zimmer-Biomet Posterior Stabilizing total knee arthroplastyDEVICE

Zimmer-Biomet Posterior Stabilizing total knee arthroplasty

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * 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 Exclusion Criteria: * 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

Locations (3)

Rothman Institute

Bryn Mawr, Pennsylvania, United States

University of Tennessee

Knoxville, Tennessee, United States

The Institute for Locomotion, Aix-Marseille University, Hopital Sainte-Marguerite

Marseille, France

Outcomes

Primary Outcomes

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.

Time frame: 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.

Time frame: 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.

Time frame: 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.

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.