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- Talk
- 19/05/2021
- UK
An Anatomic Bearing for a More Natural Feeling TKR - The Medical Congruent (MC) Bearing for Persona
Description
This presentation by Anders Troelsen, a consultant knee arthroplasty surgeon and Professor of Orthopedics in Copenhagen, discusses the advancements in total knee replacement technology focusing on the medial congruent (MC) bearing of the Persona knee system. Troelsen highlights the importance of personalized knee arthroplasty, emphasizing that it aims to provide a more natural feel for patients. He explains that although many knee arthroplasty cases may be treated with unicompartmental solutions, a significant portion still requires total knee replacement. The Persona knee system, featuring a vitamin E enhanced MC bearing, is noted for its optimized morphometric shapes and high contact area that enhance knee stability and mobility, particularly in the medial compartment.
Throughout the presentation, Troelsen explores healthy knee kinematics and the differences in motion between anterior-posterior translations in healthy knees compared to those treated with CR (cruciate retaining) devices, which demonstrate compromised medial stability. He details how the MC bearing achieves enhanced medial stability through optimized conformity and increased anterior constraint, outperforming competitors like ultra congruent devices.
Troelsen incorporates studies demonstrating that the MC bearing translates into favorable clinical outcomes, resulting in high Oxford Knee Scores even after two years of implantation. He also touches on the implications of the posterior cruciate ligament (PCL) presence in relation to MC bearing performance, suggesting that its design allows for versatility in surgical decision-making.