An implant having a first member having a first elongated channel and a second member having a second elongated concave channel that becomes generally opposed when the first and second members are mounted to a first and second vertebra. A ball bearing is received in each of the channels to both separate and maintain a predetermined distance between the first and second member and also to facilitate movement in a plane that intersects an axis of the spinal column. The ball bearing is seated in and cooperates with the channels to permit pivotal movement about a plurality of axes. A method for replacing a disc is also shown using the implant.


< Ligament fixation using graft harness

< Expanding ligament graft fixation system and method

> Intervertebral prosthetic joint

> Materials, devices and methods for implantation of transformable implants

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