Improved Distribution of Forces
Wear in revision knees is a function of forces placed on the implant in an effort to achieve the required stability. Through the enhanced rotary arc design, anatomic radius and flared posterior condyles, the Triathlon TS knee system balances the way stability is achieved with constraint to mimic natural knee kinematics and potential for enhanced wear. The Triathlon TS knee system maintains conformity with a high contact area throughout the entire range of motion while reducing the stresses transmitted to the insert post in deep flexion.1,2
The favorable degree of conformity demonstrated by the Triathlon TS knee system components throughout the range of motion leads to reduced contact stresses and offers the opportunity for enhanced long term component durability without compromising stability.
1. D’Lima, D., Chen, P., Kester,M., Impact of Patellofemoral design on Patellofemoral Forces and Polyethylene Stresses JBJS 2003: 85:85-93.
2. Hollister AM, Jatana S, Singh AK, SullivanWW, Lupichuk AG. The axes of rotation of the knee. Orthopaedic Laboratory, Harbor-UCLA Medical Center, Torrance. Clin Orthop. 1993 May;(290):259-68.
Motion:
Stryker Test Data RD-03-041 and RD-04-027
Better Fit:
Hitt, Kirby, et al. anthropometric Measurements for the Human Knee. Correlation to the Sizing of Current knee Arthroplasty Systems JBJS Vol. 85-A Sup. 4, 2003
Wear:
Stryker Orthopaedics Test Report RD-06-013.