| 摘要 |
The prosthesis comprises pair of connection plates (1,5) for connection with adjacent vertebral objects, and hinge core (20) forming an hinge having concave hinge surface and complementary convex hinge surface (11), with one of the connection plates. The concave hinge surface encloses the convex hinge surface within a solid angle of 90 [deg], such that the convex hinge surface lies within a recess surrounded by edges. |
