MODULAR PROGRESSIVE IMPLANT FOR A JOINT ARTICULATION SURFACE

摘要

PROBLEM TO BE SOLVED: To provide modular interchangeable bone implants to replace articular bone surfaces and methods for installing and replacing the implants. SOLUTION: An implant 30 for on a resected articulation surface of a bone includes a tray 36 having a top surface and an opposite bone apposition surface. An opening extends completely through the tray between the top surface and the bone apposition surface. A bearing member is mounted on the top surface of the tray, the bearing member having a top articular surface. Anchor 34 downwarly projects away from the bone apposition surface of the tray, the anchor being adapted to engage the bone and being configured so that the anchor can selectively pass completely through the opening of the tray. A fastener 40 connects the anchor to the tray. COPYRIGHT: (C)2007,JPO&INPIT