The purpose of this study is to evaluate both short and long term clinical performance and safety of the commercially available U2 Knee™ System.
This is a prospective, single arm, multi-center, post-approval study designed to evaluate the short and long term clinical performance and safety in subjects receiving primary total knee arthroplasty (TKA) with the U2 Knee™ System. The study will enroll up to 200 subjects with scheduled pre-discharge, 6-week, 3- and 6-month and up to 5-year annual follow-up visits. Study outcomes will be analyzed and published when 1.) all enrolled and implanted subjects complete their 6-week follow up, 2.) all implanted subjects complete their 2-year follow up, 3.) at the conclusion of the study. The study will follow GCP guidelines and will be registered on clinicaltrials.gov.
Study Type
OBSERVATIONAL
Enrollment
200
The United U2 Knee™ System consists of several components and for this clinical evaluation it includes the (1) Femoral Component, (2) Tibial Insert, 3) Tibial Baseplate, and the 4) Patella.
Coastal Orthopedics
Bradenton, Florida, United States
Jacksonville Orthopaedic Institute
Jacksonville, Florida, United States
Orthopedic Center of Vero Beach
Vero Beach, Florida, United States
Rubin Institute for Advanced Orthopedics
Baltimore, Maryland, United States
Implant Survivorship
Device Survivorship defined as no revision of removal of any parts of the system
Time frame: 2 Years
Change in Knee Society Score (KSS) Over Time
This endpoint is defined as differences in both pain and functional parameters measured at current and pre-discharge visits
Time frame: Baseline, 6 weeks, 3 months, 6 months, 12 months, 24 months, 3 years, 4 years, 5 years
Change in EQ-5D Over Time
This endpoint is defined as differences in scores related to the EQ-5D questionnaire and the EQ-VAS measured at current and pre-discharge visits.
Time frame: Baseline, 6 weeks, 3 months, 6 months, 12 months, 24 months, 3 years, 4 years, 5 years
Change in EQ-5D VAS Over Time
This endpoint is defined as differences in scores related to the EQ-5D VAS questionnaire and the EQ-VAS measured at current and pre-discharge visits.
Time frame: Baseline, 6 weeks, 3 months, 6 months, 12 months, 24 months, 3 years, 4 years, 5 years
Change in KOOS, JR. Over Time
This endpoint is defined as difference in the KOOS, Jr interval score measured at current and pre-discharge visits.
Time frame: Baseline, 6 weeks, 3 months, 6 months, 12 months, 24 months, 3 years, 4 years, 5 years
Radiographic Analysis
This endpoint is defined as incidence rate of new radiographic failures at each follow-up visit.
Time frame: 24 months, 5 years
Operative characteristics
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Descriptive statistics in operative characteristics will be reported as secondary endpoints to evaluate operative success
Time frame: Operative
Subject Satisfaction Survey
Subject satisfaction with their knee surgery.
Time frame: 6 weeks, 3 months, 6 months, 12 months, 2 Years, 3 Years, 4 Years and 5 Years.