Comparison of High Flex and Standard Rotating Platform Total Knee Arthroplasty (TKA)

A Prospective Comparison of Rotating Platform Cruciate Substituting Total Knee Arthroplasty With Rotating Platform High-Flex Cruciate Substituting Total Knee Arthroplasty

The goal of this study is to determine if the rotating platform high flex design provides improved flexion compared to the standard rotating platform TKA.

Inclusion Criteria:

• Age 40 to 75 years old
• Primary diagnosis of osteoarthritis of the knee
• Patients who, in the investigator's opinion, are appropriate candidates for a cemented, rotating platform TKA.
• Patients who, in the investigator's opinion, are capable of participation in a clinical trial and reliable enough to return for follow-up appointments.

Exclusion Criteria:

• Pregnant or lactating female subjects
• Patients with post-traumatic or inflammatory arthritis
• Patients with a fixed flexion contracture of greater than 20 degrees
• Patients with advanced hip, spine, or ankle disease
• Patients with a BMI greater than 40, where knee flexion may be limited by soft tissues