Radiographic Migration Analysis of the ATTUNE Cementless CR Fixed-Bearing Total Knee Replacement

Radiographic Migration Analysis of the ATTUNE Cementless CR Fixed-Bearing Total Knee Replacement: A Multi-Center, Non-Controlled, Prospective Study

This is a multi-centre, single cohort trial of patients undergoing cruciate-retaining total knee arthroplasty with the Attune Cementless, Fixed Bearing, Cruciate Retaining TKA System.

All patients will undergo post-operative radiostereometric analysis (RSA) and computed tomography (CT) to quantify and characterize the in vivo migration pattern of the Attune AFFIXIUM Cementless Tibial Baseplate and the Attune POROCOAT Cementless Femoral Component up to 24 months. Patient health and functional outcomes will be recorded at pre- and post-operative intervals for all patients. Peri-operative adverse events and other clinical complications will be captured as encountered.

Inclusion Criteria:

• Symptomatic osteoarthritis of the knee indicating primary total knee arthroplasty
• Patients aged 21 years or older
• Sufficient ligamentous function to warrant retention of the posterior cruciate ligament
• Patients willing and able to comply with follow-up requirements and self-evaluations
• Ability to give informed consent

Exclusion Criteria:

• Active or prior infection of ipsilateral extremity
• Medical condition precluding major surgery
• Inflammatory arthropathy
• Posterior cruciate ligament (PCL) deficiency
• Major coronal plane deformity
• Conditions that are cautioned against or contraindicated, as listed in the product monograph and/or instruction for use
• Bone defects requiring augments, cones and/or stemmed implants