The DePuy Attune knee system incorporates several key features aimed at improving kinematics of the knee joint, range of motion, and smoothness of use compared to existing total knee replacement technologies. As this is a newly approved medical device, clinical testing in patients using high precision diagnostics is important to evaluate the stability of implant fixation and in vivo function. We propose a multi-centre consecutive series study examining the stability of the Attune posterior-stabilized knee design in 30 patients undergoing total knee arthroplasty for a follow-up period of 2 years. Radiostereometric analysis (RSA) will be utilized to identify the micromotion of the tibial tray with respect to the surrounding bone. Health status and functional outcome measures will be recorded to quantify functional status of subjects before surgery and at follow-up intervals.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
30
Concordia Hospital
Winnipeg, Manitoba, Canada
Capital District Health Authority
Halifax, Nova Scotia, Canada
Hopital Maisonneuve-Rosemont
Montreal, Quebec, Canada
Implant migration
Time frame: 2 years
Functional range of motion
Time frame: 2 years
Self-reported health status
EQ-5D score
Time frame: 2 years
Self-reported joint status
Time frame: 2 years
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