| 摘要 |
A vertebral prosthesis comprises a distal element 2 adapted to be received in a distal vertebra, a proximal element 5 adapted to be received in a proximal vertebra, the distal element 2 being capable of articulation relative to the proximal element 5. Preferably a bearing element 4 is attached to the distal element 2 and includes a convex bearing surface 32 which, in vivo, contacts a concave bearing surface 42 of the proximal element 5. <IMAGE>
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