Patients who receive a total knee replacement prefer a feeling of “stability” 22. An increasing number of designs aim to be more stable in the medial compartment, but only a true Ball-in-Socket (B-i-S) design with 1:1 congruency on the medial side ensures stability.
Several published papers, including two studies using advanced 3D moving fluoroscopy technology17, have shown that GMK Sphere provides higher stability than other implant designs, while allowing more natural, subject-specific motion patterns, proving to be preferred by patients when compared to both CR and PS implant designs 23.
When combined with the KA technique, Medacta's Ball-in-Socket design has been shown to provide better functional scores and improve patient outcomes compared to other designs5,7 further enhancing patient satisfaction6.
Existing femoral implants on the market were designed for the Mechanical Alignment (MA) technique. This can potentially compromise outcomes using KA technique24,25.
To potentially further improve KA results and ultimately patient satisfaction, Medacta has developed GMK SpheriKA, the first and only KA-optimized implant. GMK SpheriKA is built upon the strong heritage of the GMK Sphere Medial Ball-in-Socket, with a particular focus on the anterior aspect of the femur.