INTERVERTEBRAL DISC SYSTEM

摘要

An vertebral implant (20) is interposed between two vertebral endplates and comprises a first endplate assembly (22) having a first restraint mechanism extending from a first exterior surface (28) for engaging a first vertebral endplate The implant further comprises a second endplate assembly (24) having a second restraint mechanism (46) extending from a second exterior surface (30) for engaging a second vertebral endplate and a central body articulable between the first and second endplate assemblies. The first restraint mechanism has a shape that matches a contour in the first vertebral endplate.