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The Medial Rotation Knee™ (MRK™) is the original medial ball-and-socket knee and has been in clinical use for over 20 years. The MRK™ design was based on the principle that by providing natural functional and anatomical asymmetry in all three knee compartments (medial tibiofemoral, lateral tibiofemoral and patellofemoral articulations), better function and increased patient satisfaction can be achieved without the compromises of traditional TKRs.
The result is complete inherent stability throughout the range of motion, coupled with allowance for physiological rotation during flexion. The design also features a physiologically asymmetric patellofemoral joint for a more natural feel and ease of flexion.
When compared to all other knees, the MRK™ medial ball-and-socket knee design consistently achieves superior functional performance and excellent survivorship. Clinical data for the MRK™ shows that patients can expect:
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