Posterior stabilization in PCL (Posterior Cruciate Ligament) sacrificing Total Knee Arthroplasty (TKA) can be achieved by two commonly used design concepts. Anteriorposterior (AP) stability can be provided either by the ultracongruent (UC) shape of the tibial articulation or by a posterior cruciate substitution with a central spine on the tibial insert which articulates with a transverse cam on the femoral component . Clinical studies have indicated that the use of UC tibial insert design does not significantly compromise the TKA outcomes when compared with the use of posterior cruciate substituting design .
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The Influence of Tibial Insert Design on Posterior Stabilized Total Knee Arthroplasty Kinematics
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Dharia, MA, Muenchinger, M, Siggelkow, E, & Bischoff, JE. "The Influence of Tibial Insert Design on Posterior Stabilized Total Knee Arthroplasty Kinematics." Proceedings of the ASME 2011 Summer Bioengineering Conference. ASME 2011 Summer Bioengineering Conference, Parts A and B. Farmington, Pennsylvania, USA. June 22–25, 2011. pp. 527-528. ASME. https://doi.org/10.1115/SBC2011-53106
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