Stryker Triathlon PKR

Triathlon PKR
Triathlon PKR
Triathlon PKRTriathlon PKRTriathlon PKRTriathlon PKRTriathlon PKR
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Triathlon Partial Knee Resurfacing (PKR)

Triathlon PKR is a fixed bearing unicompartmental, or unicondylar, knee that blends the ease and familiarity of a measured resection system with the control of a gap balancing system. This bone-preserving approach eliminates the need to violate the intramedullary (IM) canal, and provides the potential to return patients back to their normal activities.1,2

The Triathlon Partial Knee Resurfacing (PKR) System was designed to make unicompartmental knee resurfacing (UKR) potentially easier and more straight forward. The patented single radius design, coupled with the ability to balance the flexion and extension gaps, is intended to produce more stable, natural knee motion.3,4 The result is an elegant solution, helping to restore normal physiologic ligament tension and knee kinematics throughout the range of motion.

Features & Benefits

Two components:




Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the following trademark(s) or service mark(s): X3, Triathlon. All other trademarks are trademarks of their respective owners or holders.


1. Romagnoli, S. The adventures of unicondylar knee replacement. Proceedings from Current Concepts in Joint Replacement. Spring 2001, Paper 33.

2. Murry, D. Unicompartmental knee replacement: Now or Never? Orthopedics, 23: 980, September 2000.

3. Wang H, et al: A Biomechanical Comparison Between the Single-Axis and Multi-Axis Total Knee Arthroplasty System For The Stand-To-Sit Movement, Clinical biomechanics. 2005 May; 20(4): 428-33.

4. Iwaki, H., V. Pinskerova, and M. A. R. Freeman. "Tibiofemoral Movement 1:the Shapes and Relative Movements of the Femur and Tibia in the Unloaded Cadaver Knee." The Journal of Bone & Joint Surgery (Br) 82-B (2000): 1189-1195.

5. Knee Simulator Wear Evaluation of PS Components: Stryker Orthopaedics Triathlon (N2Vac and X3)