Patent ID: 8211175

Claim:
An articular disc prosthesis for disposition between a first vertebra and a second vertebra, comprising: a first articular component including a first cylindrical portion and a first flange portion extending laterally therefrom and defining a first vertebral bearing surface adapted to engage the first vertebra; and a second articular component including a second cylindrical portion and a second flange portion extending laterally therefrom and defining a second vertebral bearing surface adapted to engage the second vertebra; and an articulating joint configured to provide articulating motion between said first and second articular components; and wherein said first and second cylindrical portions each extend generally along a longitudinal axis from a first axial end portion to an opposite second axial end portion, said first and second cylindrical portions each including a hemi-cylindrical outer surface extending along an axial length of said cylindrical portions from said first axial end portion to said second axial end portion.