Implant for use between cervical vertebrae, comprises two components that move against each other, provides increased freedom of movement

摘要

Implant (A) for placement between two adjacent vertebrae in the cervical spinal column. Implant (A) for placement between two adjacent vertebrae in the cervical spinal column comprises two components (2; 3) for implanting in adjacent vertebrae where each has, on its back, a flat support surface, for contacting the bone, at least partly covered by a three-dimensional, open-mesh net structure (4). Component (2) has a curved surface (7) on its front, while (3) has a concave surface (8), on its front, corresponding to the curvature of (7). The surfaces (7) and (8) combine together to act like a join that allows movements with medial-lateral and dorsal-ventral components.