Zimmer POLAR - Total Knee Arthroplasty (TKA)

Inclusion Criteria

• Patient 18-75 years of age, inclusive;
• Patient qualifies for primary total knee arthroplasty based on physical exam and medical history, including diagnosis of severe knee pain and disability due to at least one of the following:
• rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis;
• collagen disorders and/or avascular necrosis of the femoral condyle;
• post-traumatic loss of joint configuration, particularly when there is patellofemoral erosion, dysfunction or prior patellectomy;
• moderate valgus, varus, or flexion deformities;
• the salvage of previously failed surgical attempts that did not include partial or total knee arthroplasty of the ipsilateral knee;
• Patient has participated in a study-related Informed Consent process;
• Patient is willing and able to complete scheduled study procedures and follow-up evaluations;
• Independent of study participation, patient is a candidate for commercially available Persona fixed bearing knee components implanted in accordance with product labeling.

Exclusion Criteria

• Patient is currently participating in any other surgical intervention studies or pain management studies;
• Previous history of infection in the affected joint and/or other local/systemic infection that may affect the prosthetic joint;
• Insufficient bone stock on femoral or tibial surfaces;
• Skeletal immaturity;
• Neuropathic arthropathy;
• Osteoporosis or any loss of musculature or neuromuscular disease that compromises the affected limb;
• Stable, painless arthrodesis in a satisfactory functional position;
• Severe instability secondary to the absence of collateral ligament integrity;
• Rheumatoid arthritis accompanied by an ulcer of the skin or a history of recurrent breakdown of the skin;
• Patient has a known or suspected sensitivity or allergy to one or more of the implant materials;
• Patient is pregnant or considered a member of a protected population (e.g., prisoner, mentally incompetent, etc.);
• Patient has previously received partial or total knee arthroplasty for the ipsilateral knee.