Triathlon Total Knee system Primary Tibial Baseplate #5 Beaded wPA; Catalog Number 5526-B-500, Cementless use only. Sterile. || Howmedica Osteonics, 325 Corporate Drive, Mahwah, NJ 07430; A subsidiary of Stryker Corp. Made in Ireland. || The Triathlon Total Knee System is intended for use in primary and revision total knee arthroplasty to alleviate pain and restore function.