Spine osteosynthesis instrumentation for an anterior approach

Details Spine osteosynthesis instrumentation for an anterior approach Spine osteosynthesis instrumentation for an anterior approach

A - Human Necessities

61

B

A61B 17/70 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2149034

2149034 9410927 PCTABS00032 The instrumentation comprises at least two blocks (1) adapted to transversely interconnect two rigid rods (2, 3) axially slidable in these blocks which are provided with bone anchorage screws (7, 8) suitably oriented and slides (4, 5) which are slidable in longitudinal recesses (6, 7) receiving the respective rods (2, 3) which may be in this way clamped by the slides after the latter have been completely closed. Each block (1) has in the transverse direction from the anterior part to the posterior part a curved general shape corresponding to the antero-lateral anatomy of the vertebral bodies, the interior surface being consequently concave while the exterior surface is convex. The instrumentation obtained by the assembly of two blocks (1), anchorage screws and stiffening rods (2, 3) forms a very stable rectangular structure restoring the axial continuity of the vertebral column, avoiding correction losses and facilitating the consolidation of the bone graft.

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