| abstract |
Abstract An artificial spinal (100) joint for creating at least a portion of a coupling between a superior vertebra and an inferior vertebra comprises an inferior arthroplasty half (104) . The inferior arthroplasty half comprises an inferior articulating component (112) for placement in an intervertebral disc space between the superior and inferior vertebrae, a first posterior arm, and a first bridge (116) component coupled between the inferior articulating component and the first posterior arm. The artificial spinal joint further includes a superior arthroplasty half (102). The superior arthroplasty half comprises a superior articulating component (106) for placement in an intervertebral disc space between the superior and inferior vertebrae, a second posterior am, and a second bridge (110) component coupled between the superior articulating component and the second posterior arm. The first posterior arm and the second posterior arm cross an anterior-posterior axis defined centrally through and extending from the intervertebral disc space. |