MOBILE BEARING SPINAL DEVICE AND METHOD

摘要

An artificial vertebral joint (100) for interposition between a superior vertebra and an inferior vertebra, the artificial vertebral joint comprises a superior retaining portion (110), and an inferior retaining portion (114). T he joint further comprises a half-cylinder shaped mobile bearing (102) adapted for insertion between the superior retaining portion and the inferior retaining portion, wherein the half-cylinder shaped mobile bearing is furthe r adapted to move within the inferior retaining portion.