Gait Analysis of a Lateral-Pivot Design Total Knee Replacement
More Foundation
Summary
Previous motion analysis studies have demonstrated excellent ability to distinguish subtle differences in gait between normal subjects and those suffering from arthritis. With proper techniques and analysis differences between osteoarthritis patient groups can be distinguished. Previous research has indicated that subjects who received a single-radius design total knee replacement have superior gait performance that those who received a multi-radius design total knee replacement. The DJO Global Empowr PS Knee System is a single-radius lateral pivot design. This design should achieve reproducible more natural knee function and improved patient outcomes and satisfaction. A motion analysis laboratory will be used to collect gait data from patients who are going to receive a Empowr PS knee device and also from age-matched control subjects. These data will be compared with data previously collected from patients who received Stryker Triathlon devices, Biomet Vanguard devices and age-matched healthy control subjects.
Description
Thirty subjects who are scheduled to receive an Empowr PS Total Knee Replacement device will be consented to be in the prospective component of the study. Twenty of these patients will participate in motion data collection. These patients will all be scheduled to undergo primary total knee replacement using the Empowr device. All surgeries will be performed using computer navigation. Patients will receive standardized physical therapy to insure consistency of rehab protocols and discharge from physical therapy criteria. Specifically, patients will be monitored for visit compliance, Timed Up an…
Eligibility
- Age range
- 50+ years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: Controls: 1. At least 50 years of age. 2. Subjects who provide signed and IRB approved informed consent for gait analysis data collection Retrospective subjects: 1. Subjects who had primary total knee replacement with either Stryker Triathlon Total Knee System or Biomet Vanguard Complete Knee System. 2. Subjects at least 50 years of age at the time of the surgery. 3. Subjects who previously provided signed and informed consent for gait analysis data collection under approval of the Sun Health Institutional Review Board 4. Cases that followed product labeling. Prospecti…
Interventions
- DeviceDJO Empowr PS Knee System
Patients will receive a DJO Empowr PS Knee System total knee replacement
- DeviceStryker Triathlon Total Knee System
Patients received a Stryker Triathlon Total Knee System total knee replacement
- DeviceBiomet Vanguard Complete Knee System
Patients received a Biomet Vanguard Complete Knee System total knee replacement
- DeviceControl
No total knee replacement
Location
- MORE FoundationPhoenix, Arizona