In Vivo Comparison of Knee Kinematics for Subjects Implanted With a Smith & Nephew Journey Posterior Stabilizing (PS) Total Knee Arthroplasty (TKA) and Subjects Having a Normal Knee
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Knee Injuries
- Sponsor
- The University of Tennessee, Knoxville
- Enrollment
- 50
- Locations
- 3
- Primary Endpoint
- Kinematics During Deep Knee Bend (DKB) Activity
- Status
- Completed
- Last Updated
- 6 years ago
Overview
Brief Summary
Smith & Nephew's first edition of the Journey posterior stabilizing total knee arthroplasty was analyzed by the Center for Musculoskeletal Research in a past research study, and it was determined that subjects experienced more normal-like kinematic patterns. They also achieved excessive axial rotation and a decrease in weight-bearing knee flexion. Since Smith & Nephew has made modifications to the Journey bi-cruciate stabilizing (BCS) total knee arthroplasty (TKA) design, researchers will again evaluate the kinematics of subjects implanted with the revised design to determine if subjects experience normal-like kinematic patterns and if greater weight-bearing knee flexion is achieved. The objective for this study is to analyze the in vivo kinematics for subjects implanted with a 2nd generation Journey BCS TKA and compare those patterns to subjects having a normal knee and those having the 1st generation Journey posterior stabilizing (PS) TKA that were analyzed in the previous study.
Investigators
Richard Komistek
Principal Investigator
The University of Tennessee, Knoxville
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Kinematics During Deep Knee Bend (DKB) Activity
Time Frame: 3 months post-operative
Maximum weight-bearing flexion during DKB Axial Rotation (AR) during DKB
Kinematics Translations During Squat to Stand (S2S) Activity
Time Frame: 3 months post-operative
Anterior Posterior (AP) translations of lateral femoral condyles during squat to stand (S2S) activity Anterior Posterior (AP) translations of medial femoral condyles during S2S
Kinematics During Ramp Down Activity
Time Frame: 3 months post-operative
AR of the femur during ramp down activity
Kinematics Translations During Deep Knee Bend (DKB) Activity
Time Frame: 3 months post-operative
Anterior Posterior (AP) translations of medial femoral condyles during DKB Anterior Posterior (AP) translations of lateral femoral condyles during DKB
Kinematics During Ramp up Activity
Time Frame: 3 months post-operative
AR of the femur during Ramp Up activity
Kinematics During Squat to Stand (S2S) Activity
Time Frame: 3 months post-operative
Maximum weight-bearing flexion during squat to stand (S2S) activity Axial Rotation (AR) of the femur during S2S
Kinematics Translations During Ramp up Activity
Time Frame: 3 months post-operative
AP Translations of the Medial and Lateral Femoral Condyles During Ramp Up activity
Kinematics Translations During Ramp Down Activity
Time Frame: 3 months post-operative
AP Translations of the Medial and Lateral Femoral Condyles during Ramp down activity