Product Overview
The TRI-LOCK® Bone Preservation Stem is based on the well documented 35 year clinical heritage of the original TRI-LOCK Stem. The tapered-wedge design of the TRI-LOCK BPS Stem ensures intimateimplant to bone contact proximally, providing both rotational and axial stability, while increasing the opportunity for biological fixation to bone.
(https://www.depuysynthes.com/)