Stryker Triathlon® Cruciate Substituting vs. Posterior Stabilized Outcomes Study

A Prospective, Randomized, Comparison of Total Knee Arthroplasty With the Triathlon® CS Tibial Insert vs. the Triathlon® PS Tibial Insert.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01367925

Enrollment

125

Registered

2011-06-07

Start date

2007-12-31

Completion date

2016-07-31

Last updated

2017-12-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis, Knee

Keywords

Osteoarthritis, Total Knee Replacement, TKA, Knee, PS, CS

Brief summary

This study compares the clinical and radiographic outcomes obtained with the use of the Stryker Triathalon® Cruciate Substituting (CS) and Posterior Stabilized (PS) tibial inserts.

Interventions

DEVICEStryker Triathlon® CS Tibial Insert

DEVICEStryker Triathlon® PS Tibial Insert

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

20 Years to 80 Years

Healthy volunteers

Yes

Inclusion criteria

* Adults ages 20-80 years old * Body mass index \<40 * Undergoing primary total knee arthroplasty for osteoarthritis of the knee

Exclusion criteria

* Inflammatory arthritis * Revisions Other criteria may apply

Design outcomes

Primary

Measure	Time frame	Description
Clinical outcomes, Knee Society Score	Pre-operative, 6 weeks, 6 months, 1, 2, 3, 4, and 5 years post-operative	Clinical outcomes to include overall success, failure rate, revison rate, clinical scores (Knee Society Score), range of motion, pain, stability, radiographic success

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026