Decreased Articular Forces
Wear in knees is a function of conformity versus constraint. Through the Rotary Arc design, anatomic radius, and flared posterior condyles, the Triathlon Knee System balances conformity with constraint to mimic natural knee kinematics and the potential for enhanced wear properties.1 The Triathlon Knee System maintains conformity with high contact area throughout the entire range of motion while allowing for the necessary amount of internal and external rotation to reduce torsional stress.2
The favorable degree of conformity demonstrated by the Triathlon Knee System components throughout the range of motion leads to reduced contact stresses and offers the opportunity for enhanced long-term component durability without constraining the knee’s functionality.1
1. D'Lima DD, Chen PC, Colwell CW Jr. Polyethylene contact stresses, articular congruity, and knee alignment. Clin Orthop. 2001 Nov;(392):232-8.
2. Silva M, Kabbash CA, Tiberi JV 3rd, Park SH, Reilly DT,Mahoney OM, Schmalzried TP. Surface damage on open box posterior-stabilized polyethylene tibial inserts. Clin Orthop. 2003 Nov;(416):135-44.