Triathlon PKR was developed with patient needs in mind. The implant is anatomically shaped and helps enable surgeons to use the latest minimally invasive surgical techniques. With this procedure, only the affected compartment of the arthritic femur and the tibia are resurfaced with artificial implants.
Partial Knee Resurfacing (PKR)
There are three compartments to the knee: the medial (inside) compartment, the lateral (outside) compartment and the patellofemoral (kneecap) compartment. Depending on where the arthritis affects your knee, partial knee resurfacing may be an option for you. PKR is a growing procedure. There are approximately 70,000 partial knee resurfacing procedures done in the U.S. each year.2
Partial knee resurfacing (PKR) is a surgical procedure for relieving arthritis in one compartment of the knee. With PKR, only the damaged surface of the knee joint is replaced, helping to minimize trauma to healthy bone and tissue. The surgeon removes only damaged bone in the affected knee and fits the implant to that bone. Because the PKR artificial joints are smaller than total knee implants, the surgical incision may be smaller as well.
Since most of the knee joint is unaffected and the basic knee structure remains intact, post-operative pain may be reduced and the recovery period may be shorter than total knee replacement.3
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
Patented Single Radius – designed to provide ligament stability through the range of motion.3,4
Ligament Balancing – designed to restore normal physiological ligament tension.
Anatomic Shape – the femoral component features a 7.5 degree bend to match the natural curve of the femoral condyle.
Easy Size Interchangeability – bone cuts are the same for all 6 sizes. This provides intra-operative flexibility to change sizes without recutting the femur.
Straightforward Gap Balancing Technique – instruments designed to provide a simple way to balance flexion and extension gaps and restore normal ligament tension.
Procedural Efficiency – fewer instruments, pinless option, and ‘drill through’ trials, allow surgeons to optimize positioning of the femoral component prior to peg prep.
Navigation – designed for use with navigation software.
X3 Advanced Bearing Technology – Triathlon Partial Knee Resurfacing system utilizes Stryker’s proprietary X3 highly crosslinked bearing technology, which has shown a 96% decrease in wear in laboratory testing compared to competitive premium bearing surfaces in TKRs.5
Forgiving Design – the femoral component can withstand up to +/- 10 degrees of malalignment without edge loading.